Well, we've talked about the Mk.4A and the Mk.4B, here's a more unusual one, the Mk.4C. There's only one of these and its most significant difference is that it's rear engined, Hillman Imp in fact. The Hillman Imp engine and gearbox was a great little set-up even in Hillman Imps. Norm Beechey used to hillclimb one when they were new and it was a rocketship. So think how it would go in a Mk.4 Bolwell. Click on comments to comment on this great little car.