Debora SP93

The Debora SP93 was a C3-class sports-prototype built for hillclimbing and the French Coupe Alfa Romeo. It was later revised into the Debora LMP294 in 1994 for the same series. Both versions used a 3-litre Alfa Romeo V6 engine and were campaigned at the 24 Hours of Le Mans by Didier Bonnet Racing. Only two chassis were ever made—#C393-01, which raced at Le Mans, and #C393-02, built for the Coupe Alfa Romeo—and both were shared between the SP93 and LMP294 configurations.

The SP93 first appeared during the 1993 Le Mans test session, with Yvan Muller, Georges Tessier, Gérard Tremblay, and Didier Bonnet listed as drivers. Entered by Didier Bonnet Racing in the LMP class, the car qualified 18th overall and was the only LMP-class entry at the event. Muller, Tremblay, and Tessier drove in the race but retired after 253 laps due to engine failure, though they had completed more laps than three of the cars that finished. For 1994, the car was upgraded to the LMP294 specification, and Bruno Miot drove it in the test session, qualifying 19th overall and second in the LMP2 class. In the race, Georges Tessier, Pascal Dro, and Bernard Santal took the wheel, but an accident forced a retirement after 79 laps. The car then sat unused for four years until R.D.C. Schweiz entered Josef Pfyl in the 1998 Interserie round at Most, with the car reverted to SP93 specification and classified in Div.II-Euroserie. Pfyl finished 15th overall and 11th in class in the first heat, but that result was not enough to qualify for the second heat, and the chassis was never raced again.