Rover 75 P4 running gear and shortened P4 chassis; engine moved rearwards and steering made quicker. Some of Auntie's body panels used; also her original hydro-mech brakes, but not her column shift. Quadruple overdrive an alternative to standard Rover freewheel transmission. Claimed 100mph attainable from 1951-announced '100', with enlarged three-carb engine - probably only two such models made, though.
- 2103cc/2392cc (S6 IOE)
- Front engine, rear-wheel drive
- Production dates:
- 1950 to 1952
- Number produced: