Monaco’s project was aimed at demonstrating two technical principles, both of which – many decades later – were widely adopted by the global automotive industry: air-cooling of the engine and front-wheel drive. For the engine he chose a J.A.P. twin- cylinder featuring 80 x 99 mm, 998 cc total displacement, and two overhead valves for each cylinder. The engine was lubricated by three pumps: the first pump sent oil to the crankshaft, another to the right-hand cylinder, and the third to the timing components as well as valve guides.