The 250 SWB is often described as one of the best 'dual purpose' Ferraris. Around 160 examples were made with success both on and off the track. Standard road versions of the SWB had a steel body and a detuned Colombo V12 while the Competizione versions featured an alloy body and a smaller 80x45mm frame instead of usual 90x54mm. Offering a substantial weight savings, the Competizione attained class victories at the biggest events inclusing Le Mans and the Tour de France.
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An ultimate version of the SWB was made in 1961 for the Lemans race effort. These cars are sometimes refered to as the SEFAC Hotrods which was Ferraris factory name at the time. Chassis 2701, the car featured with the #74, is one of these factory team cars. Only eight SWBs were built to SEFAC specification. These cars were specifically intended to race at Le Mans alongside the 250 Testa Rossa.
Many differences set the SEFAC cars apart from the regular Competizione models. The frame had relocated suspension mounting points. Much weight was shed with the use of alloy brake calipers, slide Plexiglas windows, a 1.1mm aluminum body and a bare interior . The Tipo 168F engine had a revised heads and intake manifolds, 46mm carbs, new oil pumps, new sump and larger valves. These modifications set the horsepower at over 290 bhp.
RM Auctions recently offered 2701 at their Monterey Sports Car Auction. The bid of $1450000USD was not high enough to meet the reserve.