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A piece of 1980s IMSA GTX history is heading to the auction stage this summer. Mecum Auctions will offer a Fabcar-modified Porsche 935/84, chassis 93584, at its Monterey 2026 sale with bidding open at no reserve. Lot details and photography come from Mecum's own listing for the car, cataloged as lot S127 and set to cross the block on Saturday, August 15.
By 1980, Porsche's own competition department in Weissach had largely stepped back from building new 935s, the twin-turbocharged Group 5 monsters that had ruled international GT racing since the mid-1970s. Owners who wanted to keep campaigning the platform into the new decade turned to independent specialists rather than the factory. Kremer Racing, Reinhold Joest, and Fabcar of Tucker, Georgia all built reputations reworking existing 935 chassis with sharper aerodynamics, revised suspension, and fresh bodywork to keep the cars competitive against newer machinery.
This particular chassis began life as a standard 935 before Fabcar's Dave Klym transformed it into 935/84 specification. The rebuild borrowed a Kremer K3 rear suspension, a front end sourced from the wide-body 935 "Moby Dick," and a long-tail fiberglass body with a Kremer K4 nose. Power comes from a 3.3-liter twin-turbocharged flat-six fed by Bosch fuel injection and routed through a five-speed manual, a combination strong enough to carry the car to a fifth-place finish in the 1985 24 Hours of Daytona under privateer legend Bob Akin.
Akin campaigned the car through the 1983 and 1984 seasons wearing its unmistakable red Coca-Cola and Domino's Pizza No. 5 livery, backed by Hudson Wire, the company his grandfather founded in 1901. Beyond Daytona, the car saw action at the 12 Hours of Sebring, the Road Atlanta 500 Kilometers, the Riverside 6 Hours, and Lime Rock, building a resume that still resonates with vintage racers today. The sale includes build photographs, HMSA and HSR logbooks, and an FIA Historic Technical Passport, documentation that keeps the car eligible for HMSA, HSR, and SVRA vintage events and matters just as much as the hardware for anyone serious about air-cooled Porsche history.
Putting a number on a car like this is tricky, since one-off competition specials rarely fit neatly into a standard price guide. Hagerty's valuation tools don't carry a listing for the 935/84 itself, but they do track its closest road-going relative, the 911 Turbo (930), which shares the 935's turbocharged flat-six architecture. Hagerty currently pegs a #3-condition, or "Good," 1989 911 Turbo 930 coupe at roughly $205,000, with Targa and Cabriolet variants trailing behind in the $140,000 to $195,000 range. Competition 935s, by contrast, live almost entirely in the auction-driven market, where race history, documentation, and vintage-series eligibility can push results well past anything the street cars in the lineup command.
With no reserve attached, the Fabcar-built 935/84 will be a real test of how much the market values a well-documented, ex-privateer IMSA warrior when it crosses the block in Monterey on August 15. For collectors tracking the broader vintage Porsche race car market, it is another data point in a segment that keeps climbing at auctions across the country.