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Today, Kellymoss, the winningest team in Porsche racing history, revealed the Kellymoss GT4R at the SEMA Show 2025, setting a new benchmark for race car innovation and craftsmanship. Built upon the acclaimed Porsche GT4 RS Clubsport platform, the GT4R embodies Kellymoss’s relentless pursuit of performance and precision, engineered by racers, for the driven or uncompromising.
“When Porsche built the GT4 RS Clubsport, they created one of the most driver friendly track cars ever made,” said Victoria Thomas, co-owner of Kellymoss . “But we asked ourselves, what if we could take it further? The GT4R is the answer. Lighter, sharper and more connected to the driver than ever before.”
The Kellymoss GT4R merges Porsche engineering excellence with the ingenuity that has defined Kellymoss’s racing dominance for more than three decades. Every component was considered to achieve more grip, more feedback and more connection between driver and machine. From the titanium exhaust that delivers a raw Cup car soundtrack to the multilink rear suspension that transforms handling, every modification serves a singular goal: performance without compromise.
Key modifications include:
The GT4R is both a showcase of Kellymoss’s engineering philosophy and a tribute to Porsche’s motorsport legacy, balancing innovation with restraint. Each enhancement was measured for maximum value and harmony with the original chassis, a disciplined “less is more” approach honed through years of championship-winning experience. Displayed within the Hoonigan exhibit at SEMA, the GT4R represents a collaboration between two icons of performance culture. The build rides on custom Rotiform wheels, part of Hoonigan’s premium aftermarket lineup.
“SEMA is the ultimate stage for innovation,” said Thomas. “It’s where the best builders in the world show what’s possible, and we’re proud to stand among them with a car that redefines what a Porsche track machine can be.”