A car (1) having: two front wheels (2); two rear drive wheels (4); an internal combustion engine (5) which is provided with a plurality of cylinders (18) within which respective pistons (19) slide and a drive shaft (20) connected to the pistons (19); a transmission (7) which is interposed between the internal combustion engine (5) and the rear drive wheels (4) and a containing body (73) which contains the transmission (7) therein and has a tapered shape towards the rear so that the height of the containing body (73) progressively reduces from the front to the rear.