The Carrera GTR was an advanced version of Porsche’s effort to homologate a Group 4 racing variant of the 924 Turbo, built on the production car’s unibody. Exceptionally fast, it was the most powerful and quickest of Porsche’s first-generation water-cooled race cars, surpassed only by the GTR Le Mans and GTP models.
The 2.0-liter dry-sump inline-four engine generated 375 horsepower and nearly 300 pound-feet of torque, propelling the 2,050-pound GTR to a top speed of 180 mph. The car was equipped with an upgraded five-speed dog-leg transmission with limited-slip and rear-mounted cooling.
The new coupe featured a full alloy roll cage and a cross-brace beneath the hood. Its body panels were crafted from aluminum, lightweight urethane, and fiberglass. Disc brakes and axles were sourced from the 935, while a larger intercooler was installed in the front.
The 924 GTR featured wide 16-inch center-lock BBS alloy wheels with turbine covers for enhanced brake cooling, lightweight doors with sliding plastic panels, and a functional race-oriented interior, nearly identical to factory race cars, but with an added passenger seat, fire-suppression system, and extra gauges.
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