The Simtek S951 was a Formula One car for the 1995 season. The number 11 seat was taken by Domenico Schiattarella and the number 12 seat was taken by Jos Verstappen. The team's test driver was Hideki Noda. Noda was set to take the number 11 seat for the second half of the season, but the team folded after round five. The engine was a Ford-Cosworth EDB 3.0l V8. The team's main sponsor was MTV.

The car was designed by Simtek owner and technical director Nick Wirth, along with the chief designer of Simtek Research, Paul Crooks. It was a direct evolution of the 1994 season car, the S941. In order to secure a firm foothold in the sport following a traumatic season in which Roland Ratzenberger was killed at Imola whilst driving the S941, the team designed the S951 to be straightforward and uncomplicated.

One of the main changes was the change of the engine and gearboxes, as Simtek were given the old Benetton gearbox alongside the Ford-Cosworth EDB engine, which replaced the Ford-Cosworth HB engines. The Benetton gearboxes were used as part of the team's deal to employ Verstappen, who was loaned from his position as Benetton's test driver. The S951s were the last cars to be completed of all the 1995 F1 teams' chassis, arriving at the first round of the championship in Brazil with minimal testing.

The S951 was much more competitive than the S941 machine, with Verstappen and Schiattarella bringing the car to the finish on several occasions. Verstappen was able to qualify the car in the midfield at several races, his best being fourteenth at Argentina, although he only finished one race due to transmission unreliability. His best race performance came at the same race, where he ran in sixth place until his gearbox failed. Schiattarella, however, made the end to score the team's highest finish with ninth place.

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