| Chrysler R Platform | |
|---|---|
 | |
| Overview | |
| Manufacturer | Chrysler Corporation |
| Production | 1978–1981 |
| Body and chassis | |
| Class | Full-size |
| Layout | FR layout |
| Body style(s) | 4-door sedan |
| Powertrain | |
| Engine(s) | 3.7 L (225 cu in) Slant 6 I6 5.2 L (318 cu in) LA V8 5.9 L (360 cu in) LA V8 |
| Transmission(s) | 3-speed A727 automatic 3-speed A904 automatic |
| Dimensions | |
| Wheelbase | 118.5 in (3,010 mm) |
| Chronology | |
| Predecessor | C-body |
| Successor | M-body |
The Chrysler R platform was introduced for the 1979 model year. The first example of downsizing of the full-size Chrysler sedan line, the R-body is an evolution of the B-body intermediate chassis. Competing against the downsized General Motors B-body chassis and the all-new Ford Panther chassis, the R-body is the longest-wheelbase of the three. In contrast to Ford and GM, Chrysler only marketed the R-body as a four-door sedan.
Produced for only three years, the production run of the R-body chassis was far shorter than its competitors (GM B-body, 19 years; Ford Panther; 32 years). For 1982, Chrysler ended sales of the R-body chassis, marketing the M-body chassis for its largest sedans.