Porsche Unveils 911 GT4 R, Replacing Cayman GT4 in a GT4-to-GT3 Ladder
Porsche has revealed the 911 GT4 R to replace the 718 Cayman GT4 RS Clubsport, using the 911 Cup-based platform to support a ladder from one-make racing to GT3. Powered by a 4.0L flat-six with up to 520 hp, the GT4 R debuts in the IMSA Pilot Challenge at Daytona and is eligible for GT4-series under SRO rules. It weighs about 1,515 kg (vs. 1,260 kg for the Cup), has a smaller rear wing and narrower wheels to fit GT4 regulations, and carries a $375,000 price tag in the U.S. with deliveries starting in Q3, with display planned for the 24 Hours of Spa.