 These cars had a white body with two blue stripes.The Tipo 151 marked a return to more traditional concepts of car design and used a frame comprising a trellis of both round and oval large tubes, an independent front suspension and a De Dion axle which was modified to act like a swing-arm axle.The V8 engine was derived from the 450S with a reduced displacement of just under 4.0 litres due to a restriction imposed by the FIA that the participants in the experimental GT cars should have 4-litre engines.