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Sharing largely unchanged chassis underpinnings throughout its 17 model-year production, the X-body underwent body redesign for 1966, 1968, and 1975. The architecture was produced across an extensive range of body styles, including a 2-door sedan, hardtop, and convertible, a 3-door hatchback (among
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Using a semi-unibody configuration, the X-platform body was a unitized body from the firewall rearward with frame rails bolted on to support the powertrain and front suspension. Initially introduced with 4 and 6-cylinder engines, the X-body was fitted with a wide variety of powerplants through its
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As the 1970s progressed, Buick and
Pontiac would rename its X-body model lines (shifting nameplates from the A-body intermediates). For 1974, Pontiac downsized the GTO to the X-body (for its final model year before 2004). For 1975, Buick reintroduced the Skylark to replace the two-door and
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The X-body would use two steering linkage designs. From 1968 to 1974, the steering linkage was placed behind the steering gear ("rear steer"—also shared with the 1967–1969 F-body). From 1975 to 1979, the steering linkage was moved forward of the steering gear ("front steer"—shared with the
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the largest ever produced by GM), and a 4-door sedan and station wagon. The hardtop, convertible, and station wagon are exclusive to the Chevy II before 1968, with the Nova and its counterparts offered as a two-door sedan, three-door hatchback, and four-door sedan.
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Following the introduction of the
Oldsmobile Omega, Pontiac Ventura, and Buick Apollo alongside the Chevrolet Nova, the X-body was also colloquially referred to as the "NOVA" chassis, in reference to the first letter of each model name (Nova, Omega, Ventura, Apollo).
452:(by Pontiac/Buick dealers in place of the Pontiac Tempest) from 1962 to 1971. After exiting the compact segment following the 1963 model year, Pontiac introduced an X-body model line for 1971, with Buick and Oldsmobile following suit for 1973.
432:(Cadillac Seville) shared its steering linkage and front suspension with the X-body; the F-body was shortened to a 108-inch wheelbase while the K-body was lengthened to a 114.3-inch wheelbase.
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The rear-wheel drive X-body and its semi-unibody design would serve as a basis for two GM platforms through its production. The first two generations of the
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hatchback Apollo, replacing the Apollo entirely for 1976. For 1977, the
Pontiac Phoenix was introduced, replacing the Ventura for 1978.
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The X-platform is a rear-wheel drive architecture that was introduced by
Chevrolet for 1962 as a more conventional alternative to both the
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Corvair in the compact segment. In Canada, the model line was also sold as the
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428:(Chevrolet Camaro/Pontiac Firebird) shared a number of chassis components. Along with the F-platform, the rear-wheel drive
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1970–1981 F-body and 1973–1977 A-body; the control arms and steering knuckle were also common to the 1977–1996 B-body)
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in 1971, then a range of other GM products as its divisions expanded their compact model lines.
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For 1980, the platform was discontinued and the X-body designation was reused for its downsized
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375:, the first FWD compact car architecture produced by General Motors.
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Exclusive to
Chevrolet during the 1960s, the Chevy II (renamed the
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compacts of Buick, Pontiac, and
Oldsmobile, and the Z-platform
21:
360:, the architecture was initially unique in the U.S. to the
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produced from the 1962 to 1979 model years. Developed by
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From 1962 to 1967, the X-body used a 110-inch wheelbase (
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Acadian
Beaumont (1962-1963; replaced by stand-alone
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production, ranging between a 2.5L I4 and a 6.6L V8.
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530:(1968–1979; Chevy II trim level from 1962-1967)
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490:Acadian Canso (1964-1971; equivalent to Nova)
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56:. Unsourced material may be challenged and
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120:Learn how and when to remove this message
301:111 in (2,819 mm) 1968–1979
299:110 in (2,794 mm) 1962–1967
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69:"General Motors X platform" RWD
54:adding citations to reliable sources
487:brand based on Chevrolet Chevelle)
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565:Pontiac Ventura II (1971-1972)
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464:Model list (1962-1979 X-body)
511:(1975 coupe only; 1976–1979)
505:(1973–1974; 1975 sedan only)
317:(Buick, Oldsmobile, Pontiac)
480:Acadian Invader (1962-1971)
373:front-wheel drive successor
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340:General Motors X platform
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1180:General Motors platforms
408:-inch longer than the
364:, first joined by the
132:Motor vehicle platform
322:(Chevrolet, indirect)
659:Delta (D2XX/PATAC K)
232:4-door station wagon
50:improve this article
679:Epsilon (E2XX/P2XX)
354:automobile platform
331:GM X platform (FWD)
149:1976 Chevrolet Nova
138:GM X platform (RWD)
534:Chevrolet Concours
522:Chevrolet Chevy II
226:2-door convertible
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469:Acadian (Canada)
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228:3-door hatchback
188:Body and chassis
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619:General Motors
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528:Chevrolet Nova
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640:In production
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509:Buick Skylark
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430:GM K platform
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426:GM F platform
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342:(also called
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320:GM Z platform
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315:GM Y platform
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283:GM G platform
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279:GM A platform
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275:GM K platform
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271:GM F platform
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245:Buick Skylark
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218:Body style(s)
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65:Find sources:
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35:This article
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18:GM X platform
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562:(1971–1977)
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503:Buick Apollo
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477:(1962-1971)
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241:Buick Apollo
230:4-door sedan
222:2-door sedan
161:Manufacturer
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110:October 2018
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48:Please help
36:
1109:Trucks/SUVs
1012:Trucks/SUVs
703:Trucks/SUVs
579:(1977–1979)
571:Pontiac GTO
549:(1973–1979)
536:(1976-1977)
524:(1962–1968)
410:Ford Falcon
351:compact car
311:Predecessor
172:Also called
1019:C/K Series
584:References
541:Oldsmobile
385:Y-platform
306:Chronology
289:Dimensions
180:Production
80:newspapers
622:platforms
516:Chevrolet
358:Chevrolet
327:Successor
295:Wheelbase
211:FR layout
183:1961–1979
37:does not
1174:Category
1139:Category
485:Beaumont
440:Vehicles
420:Variants
379:Overview
362:Chevy II
237:Vehicles
155:Overview
1149:Commons
1048:530/560
1032:345/745
1028:325/330
921:Premium
749:Retired
631:Marques
554:Pontiac
475:Acadian
450:Acadian
403:⁄
346:) is a
267:Related
199:Compact
94:scholar
58:removed
43:sources
1086:Future
1070:Lambda
835:GM4200
830:GM2900
573:(1974)
344:X-body
206:Layout
175:X-Body
96:
89:
82:
75:
67:
1121:VSS-T
1116:VSS-S
1100:VSS-R
1075:Theta
941:Sigma
878:Kappa
689:Omega
684:Alpha
674:VSS-F
654:Gamma
497:Buick
194:Class
101:JSTOR
87:books
1159:List
1093:Cars
1064:K2XX
1003:Zeta
936:SCCS
782:BEV2
756:Cars
732:T1XX
724:31XX
715:C1XX
664:BEV3
647:Cars
338:The
73:news
41:any
39:cite
1060:900
1056:800
1052:600
1044:400
1040:360
1036:355
1024:GMT
987:RWD
983:FWD
968:RWD
964:FWD
954:RWD
950:FWD
915:FWD
911:RWD
896:RWD
892:FWD
872:RWD
868:FWD
848:RWD
844:FWD
824:RWD
820:FWD
795:RWD
791:FWD
771:RWD
767:FWD
728:610
720:GMT
710:BT1
669:GEM
52:by
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854:HQ
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998:Z
993:Y
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98:·
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