The 250 GT chassis began with a 2600 mm wheelbase, but Ferrari felt that handling and weight would benefit from a shorter chassis. In 1959 the first of these short wheelbase (SWB) cars was unveiled. As an interim series, the last seven LWB chassis were bodied with the upcoming SWB design.
These LWB bodies included rear quarter windows, which were no longer necessary once the shorter chassis was complete. Both the engine and chassis were a development of the successful 250 GT, although the drum brakes were replaced by new discs to improve braking capabilities. Unlike the LWB 250 GT, the SWB was available as an aluminium bodied competition car or as a steel bodied 'Lusso' road car.
The road car was built to comply with the latest FIA regulations which required a minimum number of cars be produced to secure homologation. Between 1960 and 1961 the 250 GT SWB was Ferrari's racing weapon of choice.
Its dominance was complete, with consistent victories in the Tour de France and GT class victories in many endurance races, including the 24 Hours of Le Mans. Within the homologated specification, Ferrari continued development of the racer resulting in the 'Comp/61' version for the 1961 season.
Compared to the previous series, it featured a more powerful engine, lighter and stronger chassis, and a slightly revised body.
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