Royale RP40

The Royale RP40 is an IMSA GTP Lights/Group C2 prototype race car, designed, developed and built by Royale Racing, for competition in the IMSA GT Championship, between 1985 and 1989.

It one a single a race, at Miami, in 1986.

Its powerplant was either a Buick V6 engine, or a Porsche flat-six engine.

It also competed in the British Thundersports series, where it achieved a 3rd-place podium finish.

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1987 Royal RP40-Buick