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.[1][2]

1987 Royal RP40-Buick

References

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  1. ^ "Royal RP40". Retrieved 20 June 2022.
  2. ^ "ROYALE RP40 GTP/IMSA LIGHT". racecarsdirect.com.