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engine, which minimised the clearance between the piston and cylinder head thereby achieving all the advantages of overhead-valve engines without the cost. This new type of engine, known as the turbulent head, was patented in 1932. The company went on to design a 6-cylinder diesel engine producing
392:
placed a contract with the company, in 1968, to develop a diesel power unit capable of running for extended periods at ocean depths of up to 600 feet (180 m); the concept was known as "recycle diesel" and involved blending a proportion of exhaust gas with fresh oxygen.
364:, a car with highly streamlined bodywork. In 1941, the company developed a relief valve subsequently named "Barostat", which automatically reduced the pressure in the fuel lines as the aircraft gained altitude, thereby avoiding the risk of the engine
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357:, in which he invited his audience to "accompany me inside the cylinder of a diesel engine", passionately describing the process of diesel combustion, in great detail.
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In 2011, Ricardo developed a carbon-fibre flywheel with a magnetic coupling and gearing system for energy-storage purposes: the product was known as "TorqStor".
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505:, which clamped around the aircraft's nosewheel and was controlled remotely by the pilot; the product was intended to reduce aviation fuel consumption.
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In the 1950s, the company worked with the railway locomotive designer, Lieutenant
Colonel Louis Frederick Rudston Fell, to develop an engine for the
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345:, who was a proponent of a high-powered "sprint" engine for fighter aircraft and who had foreseen the need for such a powerplant with the
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successfully achieved a new diesel speed record of 350.092 miles per hour (563.418 km/h) at
Bonneville Salt Flats in Utah, in the
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transmission as part of an integrated power-train control system. Then, in 1994, the company acquired a major developer of
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by assisting with some parts manufacture for the 1044 gearbox, supplied in 2010 to three
Formula One teams:
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is a
British firm that provides engineering, environmental and strategic consultancy services. Founded by
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into position aboard railway wagons. Later in 1916, it designed a 4-stroke crosshead-type engine for the
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1982:
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466:: it was claimed that the engine could improve fuel economy by up to 25%. The company collaborated with
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which produced 150 brake horsepower (110 kW) but emitted no visible smoke detectable by the enemy.
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used
Ricardo combustion-chamber technology for the Opel 2100D engine which was installed in the
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selected
Ricardo to develop a new engine, a 3.8 litre twin-turbo V8, which became known as the
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271:. In spring 1916, it helped with the design of a device to manoeuvre 25 tonnes (28 tons)
497:, for its supercars. At around the same time, the company working in collaboration with
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The company went on, in around 2008, to develop an engine capable of switching between
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330:, which, at 159 miles per hour (256 km/h), broke the world diesel speed record at
107:
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In the early 21st century, the company undertook work to improve the BMW K1200 series
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with the aid of a diesel engine designed with
Ricardo combustion-chamber technology.
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424:; this business formed the basis of the company's driveline operations in the UK.
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1050:"Ricardo's scalable TorqStor flywheel system promises FE gains at reduced cost"
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267:, the company helped develop a 600 brake horsepower (450 kW) engine for a
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in the 1980s. In 1990, the company undertook the development of an automatic
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as Engine
Patents Limited in February 1915. Later in 1915, during the
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972:"The McLaren M838T: Building the world's "greenest" supercar engine"
582:"Ricardo marks one hundred years of performance and sustainability"
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1992:
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looming, encouraged
Ricardo to develop what eventually became the
322:
to diesel operation using single sleeve valve technology: Captain
534:, with the intention of developing the company's rail expertise.
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308:
1186:
1145:
Engines and
Enterprise – The Life and Work of Sir Harry Ricardo
2425:
2068:
1876:
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Changing Gears: The Development of the Automotive Transmission
530:
In April 2015, the company acquired Lloyd's Register Rail for
291:
for use in London bus fleets. This type of engine, branded as
149:
287:
130 brake horsepower (97 kW) which was manufactured by
998:"Ricardo TaxiBot Concept To Cut Airplane Fuel Consumption"
686:. Derby, England: Rolls-Royce Heritage Trust. p. 26.
1177:
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In 1938, the company developed the V-16 engine for the
318:
In the 1930s, the company undertook work to convert a
946:
The Engineer: Technology & Innovation Awards 2009
353:
engine. In 1931, Harry Ricardo gave a lecture to the
220:
1076:"Ricardo purchases Lloyd's Register Rail for £42.5m"
948:. London: The Engineer. 9 November 2009. p. 43.
859:. Society of Automotive Engineers. pp. 366–369.
658:"Eyston – Eldridge Speed of the Wind / Flying Spray"
609:"Harry Ralph Ricardo, 26 January 1885 – 18 May 1974"
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3042:Engineering consulting firms of the United Kingdom
871:"After the Tractor: Harry Ferguson and the R5 4WD"
1107:Ricardo, 100 Years of Innovation & Technology
682:Nahum, A.; Foster-Pegg, R. W.; Birch, D. (1994).
462:and the Centre for Automotive Engineering at the
3062:Automotive motorsports and performance companies
2712:British Vehicle Rental and Leasing Association
2957:Royal Society for the Prevention of Accidents
1198:
1164:Memories and Machines, The Pattern of My Life
8:
512:selected a vehicle developed by Ricardo and
32:
3067:Auto parts suppliers of the United Kingdom
3052:Engine manufacturers of the United Kingdom
3047:International engineering consulting firms
2962:Society of Motor Manufacturers and Traders
2400:
1832:
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82:
31:
1739:Mercedes AMG High Performance Powertrains
1214:Automotive industry in the United Kingdom
551:
549:
547:
3032:Technology companies established in 1915
1126:Harry Ricardo – A Passion for Efficiency
785:"Recycle diesel underwater power plants"
709:"Inside the Cylinder of a Diesel Engine"
439:models. In August 2006, Wing Commander
961:, Vol 20 No 3, March 2010, Pages 31–36.
898:Motorcycle Sport & Leisure Magazine
787:. SAE International. pp. 2700–2711
762:"The Fell Diesel Mechanical Locomotive"
611:. Royal Society Publishing. p. 367
543:
282:After the war, the company developed a
2831:Vehicle & Operator Services Agency
1024:"MoD chooses Ricardo's Ocelot vehicle"
431:which were subsequently fitted to the
2816:Driver & Vehicle Licensing Agency
808:Opel Rekord 2100D: GM's future diesel
7:
3077:Companies in the FTSE SmallCap Index
3006:
1225:Manufacturing in the United Kingdom
242:, West Sussex. It is listed on the
25:
1166:(1st ed.). Constable London.
811:. Popular Science. 1 October 1976
452:two-stroke and four-stroke cycles
3005:
2996:
2995:
501:, developed a semi-robotic tug,
482:. This gearbox was mated to the
408:used the same technology in the
204:
203:
184:
183:
164:
163:
38:
2938:Institute of Advanced Motorists
1365:Alternative Chassis Engineering
1319:London Electric Vehicle Company
894:"A Very Special K 1300 That Is"
873:. Ferguson Club. 1 October 2023
607:Hawthorne, Sir William (1976).
343:Aeronautical Research Committee
3072:1915 establishments in England
3057:Automotive transmission makers
2717:Constellation Automotive Group
1:
2498:Transport Research Laboratory
1230:Economy of the United Kingdom
1080:International Railway Journal
117:1915 (as Engine Patents Ltd.)
3037:Companies based in Cambridge
2826:Vehicle Certification Agency
27:UK based engineering company
18:Ricardo Consulting Engineers
2762:National Tyres and Autocare
2539:Caparo Vehicle Technologies
892:Carter, Tony (April 2009).
499:Israel Aerospace Industries
326:used the new engine in the
259:The company was founded by
3098:
1976:Whitley Engineering Centre
764:. The Paxman History Pages
347:threat of German air power
2991:
2010:McLaren Technology Centre
1220:
1147:. J. H. Haynes & Co.
836:. Chevy Trucks. p. 8
831:"1982 Chevrolet Suburban"
37:
2897:Classic & Sports Car
2821:Driving Standards Agency
2811:Department for Transport
2757:Millbrook Proving Ground
1931:Electric Car Corporation
1779:Roger Dowson Engineering
1654:Advanced Engine Research
1124:Morrison, David (2012).
855:Gott, Philip G. (1991).
751:Hawthorne (1976), p. 375
647:Hawthorne (1976), p. 368
638:Hawthorne (1976), p. 365
629:Hawthorne (1976), p. 368
315:of Italy, among others.
2438:Grayson Thermal Systems
1390:British United Traction
1162:Ricardo, Harry (1968).
1143:Reynolds, John (2008).
783:Puttick, J. R. (1971).
731:"Alpha Romeo Tipo 162"
464:University of Brighton
454:in collaboration with
51:Public limited company
2806:Automotive Council UK
2767:Pinewood Technologies
1956:Castle Bromwich plant
1699:Ford World Rally Team
1577:Shelvoke & Drewry
1532:Metro Cammell Weymann
900:(583). Archived from
684:The Rolls-Royce Crecy
557:"Annual Results 2023"
386:4-8-4 Fell locomotive
355:Royal Society of Arts
244:London Stock Exchange
2975:Top Gear (TV series)
2904:Coach & Bus Week
2654:Jack Barclay Bentley
1105:Lewin, Tony (2015).
435:K1300S, K1300GT and
402:Opel Rekord Series D
376:, used this device.
2968:Top Gear (magazine)
2727:Halfords Autocentre
2569:Laycock Engineering
1794:Triple Eight Racing
1694:Engine Developments
1622:Wales & Edwards
1542:Morrison-Electricar
1512:London Taxi Company
1314:Multidrive Vehicles
1178:Ricardo plc website
1030:. 22 September 2010
1028:The Financial Times
978:. 19 September 2011
959:Racecar Engineering
926:. Bluebord Electric
711:. Old Machine Press
510:Ministry of Defence
362:Alfa Romeo Tipo 162
337:Also in the 1930s,
34:
2624:Group 1 Automotive
2284:Marcos Engineering
2179:Armstrong Siddeley
2128:Marc Nordon Racing
1911:Brabham Automotive
1004:. 19 November 2009
733:. Alpha Romeo Club
491:McLaren Automotive
429:motorcycle engines
410:Chevrolet Suburban
390:United States Navy
341:, Chairman of the
295:, was taken up by
80:GB0007370074
3019:
3018:
2798:regulatory bodies
2790:
2789:
2619:Ford Retail Group
2597:
2596:
2488:Tata Steel Europe
2453:Lotus Engineering
2388:
2387:
1941:Jaguar Land Rover
1709:Gibson Technology
1640:
1639:
1547:Northern Counties
1324:Mellor Coachcraft
1135:978-0-904685-15-2
1116:978-0-9573292-1-8
1054:SAE International
904:on 6 October 2011
662:Old Machine Press
588:. 12 January 2015
522:Snatch Land Rover
520:, to replace the
460:Jaguar Land Rover
351:Rolls-Royce Crecy
261:Sir Harry Ricardo
236:Sir Harry Ricardo
229:
228:
16:(Redirected from
3089:
3009:
3008:
2999:
2998:
2911:Commercial Motor
2707:Auto Windscreens
2666:Robins & Day
2574:Lucas Industries
2518:Zytek Automotive
2401:
2318:Peel Engineering
2304:Longbridge plant
1860:Volkswagen Group
1833:
1669:Arena Motorsport
1627:Walter Alexander
1272:Alexander Dennis
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707:Ricardo, Harry.
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586:Automotive World
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514:Force Protection
418:four-wheel drive
339:Sir Henry Tizard
307:of Germany, and
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178:Operating income
170:
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148:Graham Ritchie (
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2685:
2593:
2589:White and Poppe
2522:
2468:Perkins Engines
2443:Johnson Matthey
2397:
2395:
2384:
2224:British Leyland
2157:
1829:
1826:
1818:
1769:Red Bull Racing
1636:
1617:Wadham Stringer
1607:Tilling-Stevens
1567:Seddon Atkinson
1435:East Lancashire
1370:Aveling-Barford
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1099:Further reading
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1082:. 17 April 2015
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1056:. 12 March 2014
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486:CA2010 engine.
422:FF Developments
382:
370:Gloster E.28/39
265:First World War
257:
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240:Shoreham-by-Sea
219:
208:
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126:Shoreham-by-Sea
81:
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3082:Ricardo family
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2840:Related topics
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2796:Government and
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2782:We Buy Any Car
2779:
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2697:ATS Euromaster
2693:
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2690:Other services
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396:In the 1970s,
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372:, designed by
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1109:. Evonprint.
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693:9781872922058
689:
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641:
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632:
626:
623:
610:
603:
600:
587:
583:
577:
574:
562:. Ricardo PLC
558:
552:
550:
548:
544:
537:
535:
532:£42.5 million
528:
525:
523:
519:
515:
511:
506:
504:
500:
496:
495:McLaren M838T
492:
487:
485:
481:
477:
473:
469:
465:
461:
457:
453:
448:
446:
445:JCB Dieselmax
442:
438:
434:
430:
425:
423:
419:
415:
411:
407:
403:
399:
394:
391:
387:
379:
377:
375:
374:Frank Whittle
371:
367:
363:
358:
356:
352:
348:
344:
340:
335:
334:in May 1936.
333:
329:
325:
324:George Eyston
321:
316:
314:
310:
306:
302:
298:
294:
290:
285:
280:
278:
274:
270:
266:
262:
255:Early history
254:
249:
247:
245:
241:
237:
233:
224:
218:
214:
202:
199:
194:
189:£34.0 million
182:
179:
174:
162:
158:
151:
147:
144:
140:
139:
137:
131:
127:
124:
120:
116:
112:
109:
105:
101:
97:
94:
90:
85:
79:
77:
73:
70:
66:
63:
60:
55:
52:
49:
45:
41:
36:
30:
19:
2980:
2973:
2966:
2949:
2942:
2930:
2923:
2916:
2909:
2902:
2895:
2888:
2881:
2876:Auto Express
2874:
2867:
2860:
2853:
2846:
2609:Arnold Clark
2559:Hardy Spicer
2534:Abbey Panels
2421:Dunlop Tyres
1887:Oxford plant
1848:Aston Martin
1744:Mercedes AMG
1679:Chevron Cars
1299:IBC Vehicles
1294:Dennis Eagle
1163:
1144:
1128:. Newcomen.
1125:
1106:
1084:. Retrieved
1079:
1070:
1058:. Retrieved
1053:
1044:
1032:. Retrieved
1027:
1018:
1006:. Retrieved
1001:
992:
980:. Retrieved
976:The Engineer
975:
966:
958:
954:
945:
940:
928:. Retrieved
918:
906:. Retrieved
902:the original
897:
887:
875:. Retrieved
865:
856:
850:
838:. Retrieved
825:
813:. Retrieved
807:
801:
789:. Retrieved
778:
766:. Retrieved
756:
747:
735:. Retrieved
725:
713:. Retrieved
702:
683:
677:
665:. Retrieved
661:
652:
643:
634:
625:
613:. Retrieved
602:
590:. Retrieved
585:
576:
564:. Retrieved
529:
526:
507:
488:
449:
433:BMW Motorrad
426:
420:technology,
395:
383:
366:overspeeding
359:
336:
328:Flying Spray
327:
317:
292:
281:
273:battle tanks
258:
231:
230:
141:Mark Clare (
122:Headquarters
100:Clean energy
47:Company type
29:
2944:Motor Sport
2869:Auto Trader
2848:AM Magazine
2737:HiQ (tyres)
2602:Dealerships
2579:LucasVarity
2448:Kahn Design
2350:Rover Group
2338:Ryton plant
2259:Frazer Nash
2027:Eco Concept
1926:David Brown
1897:Rolls-Royce
1870:Crewe plant
1719:Kahn Design
1632:Willowbrook
1602:Thornycroft
1502:Leyland DAF
1497:Leyland Bus
1460:Southampton
908:27 November
516:, known as
320:Kestrel V12
303:of France,
277:Mark V tank
269:flying boat
232:Ricardo PLC
211:(2022/2023)
191:(2022/2023)
171:(2022/2023)
33:Ricardo PLC
3026:Categories
2932:Fifth Gear
2722:Green Flag
2473:Pilkington
2416:Cummins UK
2279:Lanchester
2244:Eagle Cars
2123:JBA Motors
1951:Land Rover
1799:Van Diemen
1784:Sumo Power
1689:Driftworks
1646:Motorsport
1552:Park Royal
1253:Commercial
1086:7 February
1060:7 February
1034:7 February
1008:7 February
982:7 February
930:7 February
877:7 February
840:7 February
815:7 February
791:7 February
768:7 February
737:7 February
715:7 February
667:7 February
615:7 February
592:7 February
566:7 February
538:References
524:in 2010.
441:Andy Green
332:Bonneville
284:side-valve
198:Net income
134:Key people
96:Automotive
2982:What Car?
2862:Autosport
2747:LeasePlan
2702:Autoglass
2671:Stoneacre
2649:H.R. Owen
2458:Millbrook
2153:Westfield
2086:Westfield
2064:Toyota UK
2049:Overfinch
2039:Nissan UK
1983:Lightning
1827:producers
1774:RML Group
1729:Lola Cars
1339:Wrightbus
1257:producers
489:In 2009,
293:The Comet
128:, England
59:Traded as
3001:Category
2925:Fast Car
2742:Kwik Fit
2732:Halfords
2629:Inchcape
2614:Carcraft
2493:Tickford
2411:Cosworth
2380:Wolseley
2355:Standard
2294:MG Rover
2103:Caterham
2098:Kit cars
2074:Vauxhall
1921:Caterham
1804:Williams
1759:Prodrive
1754:Munchi's
1684:Cosworth
1582:Smith EV
1572:Sentinel
1562:Scammell
1527:Maudslay
1522:Marshall
1477:Hallford
1415:Crossley
484:Cosworth
414:layshaft
380:Post-war
143:Chairman
106:, Rail,
92:Industry
3011:Commons
2855:Autocar
2644:Lookers
2634:Jardine
2584:Tomkins
2554:Gardner
2503:Unipart
2483:Ricardo
2404:Current
2370:Triumph
2360:Sunbeam
2323:Reliant
2289:Melling
2264:Gilbern
2239:Daimler
2209:Bristol
2199:Belsize
2138:Quantum
2108:Davrian
2054:Radical
2005:McLaren
1936:Ginetta
1865:Bentley
1853:Lagonda
1836:Current
1764:Radical
1749:M-Sport
1734:McLaren
1714:Hewland
1597:Sunbeam
1587:Stevens
1487:Karrier
1440:Eastern
1420:Daimler
1385:Bristol
1380:Bedford
1284:Arrival
1277:Plaxton
1265:Current
1255:vehicle
1243:marques
503:Taxibot
301:Citroën
297:Berliet
250:History
221:ricardo
216:Website
160:Revenue
114:Founded
104:Defence
67::
2951:Octane
2777:The AA
2676:Sytner
2661:Perrys
2639:JCT600
2549:Ferodo
2527:Former
2478:Quaife
2375:Trojan
2333:Rootes
2313:Morris
2274:Jowett
2269:Jensen
2229:Caparo
2189:Austin
2184:Ascari
2169:Allard
2162:Former
2059:Spyker
2034:Morgan
1988:Lister
1946:Jaguar
1916:Briggs
1704:Fortec
1674:Carlin
1612:Vulcan
1482:Jensen
1425:Dennis
1410:Commer
1360:Albion
1348:Former
1329:Optare
1151:
1132:
1113:
690:
518:Ocelot
476:Virgin
437:K1300R
388:. The
368:: the
108:Marine
2883:Buses
2681:Vertu
2513:Wipac
2328:Riley
2249:Fenix
2174:Alvis
2143:Sylva
2091:Zenos
2044:Noble
1998:Lotus
1993:Geely
1843:Ariel
1814:Xtrac
1809:Wirth
1724:Ilmor
1537:Modec
1472:Honda
1450:Foden
1430:Duple
1289:BEDEO
834:(PDF)
560:(PDF)
472:Lotus
468:Xtrac
456:Denso
313:Breda
2463:MIRA
2254:Ford
2204:Bond
2133:Onyx
1882:Mini
1455:Ford
1149:ISBN
1130:ISBN
1111:ISBN
1088:2024
1062:2024
1036:2024
1010:2024
984:2024
932:2024
910:2009
879:2024
842:2024
817:2024
793:2024
770:2024
739:2024
717:2024
688:ISBN
669:2024
617:2024
594:2024
568:2024
508:The
478:and
398:Opel
311:and
309:Fiat
299:and
223:.com
76:ISIN
69:RCDO
2918:Evo
2890:Car
2772:RAC
2508:WMG
2426:GKN
2219:BMH
2214:BMC
2118:GTM
2113:GKD
2069:TVR
1877:BMW
1492:LDV
1467:Guy
1445:ERF
1375:AWD
1355:AEC
1304:JCB
480:HRT
305:MAN
289:AEC
150:CEO
65:LSE
3028::
2299:MG
2022:MG
1078:.
1052:.
1026:.
1000:.
974:.
896:.
660:.
584:.
546:^
474:,
458:,
404:.
246:.
102:,
98:,
1206:e
1199:t
1192:v
1157:.
1138:.
1119:.
1090:.
1064:.
1038:.
1012:.
986:.
934:.
912:.
881:.
844:.
819:.
795:.
772:.
741:.
719:.
696:.
671:.
619:.
596:.
570:.
152:)
145:)
20:)
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