A highlight of Tennessee’s 2024 Chattanooga Motorcar Festival, now in its fifth year, will certainly be the Broad Arrow Auctions sale associated with it. On October 12, a wide array of collector cars will cross the block, the most notable of which is one of the very rarest of the Porsche 911 variants ever made. Known internally as the Type 954 SC RS, this example is the last of just 21 produced by Porsche Motorsport to homologate the model for FIA Group B rally competition.
Also called the 911 “Evolutionsserie,” the 911 SC RS was built for racing in the spirit of its predecessors, the 1964 904 GTS and 1967 911 R—all of which could be registered for highway use (unlike most competition cars), as each was required to be street legal in order to connect to off-road rally stages via public roads.
What appears to be a plain-Jane 911 at first glance quickly reveals surprises, like Turbo bodywork that uses lighter aluminum for the doors, front fenders, and hood. Then there’s the fiberglass bumpers, thinner glass, and lack of soundproofing. An aluminum skid plate and 935-style “lollipop” seats also allude to the model variant’s race-focused intent, as do the brakes derived from Porsche’s 917 race cars.