Designed as a revival for the Alvis name, the P6BS is perhaps one of the most practical mid-engined cars. With a offset, mid-mounted Rover V8 and a single rear seat, there was ample boot space and good all-round visibility.

The car is a 'P6' because it incorporates chassis and suspension features from the Rover 2000 range, while 'BS' stands for 'Buick-engined Sports', since the V8 engine was originally a Buick design. The roof panels are removable, an idea later seen on many US sports cars.

Sadly, the car is a one-off. The project was cancelled as part of a rationalisation programme after the British Leyland merger in 1968. This, the only prototype, survived intact.