Gianni Marin, The Motor Car, London House and Maxwell 1963
The engine used in this car was a special version of the 501 Sport. I don't know what made it special, like it's predecessors, it was a single carb 1500 cc side valve inline 4 making 30 hp. The car also featured four wheel mechanical brakes and an electric starter. The model was quite successful in 1500cc competition in its day.