The DeLorean DMC-12 was equipped with a rear-mounted, 130-horsepower, 2.85-liter PRV V6 engine, a product of a joint venture between Peugeot, Renault, and Volvo. Despite its sporty appearance, the PRV V6 was underpowered for the vehicle, and the engine sounds in the Back to the Future movies were actually from a Porsche 928 V8.
So that fauntleroy Johnny was ripping off customers and while on the take he was peddling blow to under cover dicks. Nice guy - meet them everywhere