A car from 1980. It has the General Motors 400 gearbox with floor shift handle, but the one-piece bench is still present. The small indicator window on top of the steering wheel is now blanked out (better visible on the next photo) and only houses the direction indicator warning lights in its edges.
Speedometer, clock and revolution counter have changed to the smaller diameters: 4", 2", 4". A hazard warning light switch was added below the clock. Also note how the handbrake handle got a "kink". The steering wheel is the one with the oval D-emblem with narrow surrounding.