This 1975 RSR 3.0L Carrera was ordered by Peter Gregg from Porsche, it was one of the last RSR Carrera ever completed by the factory.

911 560 9114 was delivered with the culmination of experience that both the Weissach racing engineers and the Brumos Racing Team had acquired over the past two and a half years since Gregg had first raced a Porsche RSR. This special Carrera is documented in Karl Ludwigsen's book, "Excellence was expected" and is one of the few "customer" Carreras to be so featured. In that narrative Peter Gregg describes 9114 as "definitely the lightest and best-handling Carrera we ever had".

911 560 9114 was built by the Zuffenhausen customer services department for Peter Gregg and at his request used such special items as rear trailing suspension arms made of aluminum and extra-thin body panels, (for lightness), an extra-large 36 gallon fuel tank, plus a front-mounted oil tank. 9114 was delivered to Peter Gregg at Brumos Porsche Racing.

For it's very first race, the Daytona Finale in November of 1975, Gregg had Carl Schafer, the "big block" Camaro specialist, drive the car and it finished in eleventh place.

For 1976, Peter Gregg drove BMW Brumos-entered CSL's but he hedged his team's bets by having Jim Busby drive 9114 on a bonus scheme whereby Busby was rewarded with prize money the higher he placed in the races. Busby did very well with 9114, scoring four outright victories in Camel GT events (Ontario, Sears Point, Mid-Ohio, and Laguna Seca), as well as three third and one second place overall finishes. It has been said that Peter Gregg complained that Busby was earning more money than him that year.

At the end of 1976, Jim Busby sold 9114 to Charles Mendez, the Sebring 12-Hour race promoter and Mendez raced the car just twice, (Sebring and Road Atlanta), before selling the RSR to his friend Dave Cowart of Tampa, FL. Mendez's reason for selling the RSR was simple: he had just bought an ex-Dick Barbour Racing Porsche 934 ½ and no longer had a use for 9114.

Dave Cowart raced 9114 in IMSA events for the next two and a half years, winning the GTO class outright in 1978 and placing fourth in the GTO Championship in 1979. As he was expecting a new BMW M1 for 1980, he sold the now aging RSR to Jim Mullen who raced the Carrera at Sebring and Riverside, where at both venues, it failed to finish due to engine failure.

Jim Mullen replaced the Carrera with a Mazda, ultimately selling 9114 to Bill Currie of Harvard MA in 1981. Bill Currie, partnered with Bud Lyons, directed a total restoration on the RSR. This Carrera has only been seen in public twice following the completion of its restoration in 1994. It was first displayed at the 1994 Porsche Parade in Lake Placid, NY. Four years later it was presented in the Brumos Porsche display at the Amelia Island Concours d'Elegance for Porsche's 50th Anniversary celebration. At both events it was exhibited in Brumos Porsche livery bearing a number "59" placard, not the correct number "61" as it was raced by Jim Busby under Brumos/Mitcom sponsorship in 1976. 9114 is currently owned by Lee Giannone and is participating in vintage racing and concours events.

Between 1976 and 1979 this specially-built Weissach 3.0L RSR Carrera driven by Jim Busby and Dave Cowart amassed seventeen IMSA podium finishes including eight overall wins and the 1978 IMSA GTO Championship. Additionally, it had twenty other top-ten finishes captured at every major road racing venue and endurance event within North America.

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