The P86 was racecar that was developed in 1986 by Welter Racing. The cars were used until 1987 in sports car racing.
The car was developed with financial support from Peugeot for the 24-hour race of Le Mans.
The P86 was the successor to the P85 and was not significantly changed compared to the P85. For aerodynamic reasons the posterior wheel arches were completely covered like in many Welter prototypes.
The connection to Peugeot was mainly down to the engine. The engine was originally developed for the PRV series of engines and was later adapted for racing. The P86 had a 2.8-liter V6 turbo engine, producing about 550 hp.
From only P86 chassis was built.
The P86 was only entered in a race twice, once in 1986 and once in 1987. Both times the cars were entered in the 24 Hours of Le Mans. In 1986 the drivers were Jean-Daniel Raulet, Michel Pignard and François Migault. The car numbered number 41 retired after 132 laps due to engine failure. In 1987 the driver team was Raulet, Migault and Pascal Pessiot. Again, the car retired due to engine failure.