1951 JBS MKI

Richard Utley acquired the car in 1987 and restored it first using a Triumph Twin engine. In 1991 a C&R Reproduction Long Stroke Manx (FISA Approved) was fitted. Since 1988 the car has raced successfully both in the UK and on the US Continent.

In 1951 Alf Bottoms built a batch of 13 cars which were extremely successful. Unfortunately, Alf was killed in practice for the Luxemburg Grand Prix in early 1951, and the car's development was curtailed. They were extremely well built, and of an advanced design. They were powered by Manx Norton, JAP, and Triumph engines. The original Works Cars had anodized aluminum bodies and wire wheels; later Dunlop cast magnesium wheels were fitted, which were more reliable. Drivers included Peter Collins, Curly Dryden, Wing Commander Aitkin's, Don Parker, John Coombs, and Les Leston.

The vehicle is constructed from tubular steel twin-tube chassis. It has double wishbones in the front and rear, using coils and springs, and Alf Bottoms designed telescopic dampers. The car has a light-alloy rack-and-pinion steering. There are twin leading shoe brakes, Alfin drum brakes, and a rear-mounted engine. The Norton gearbox is chain driven to the rear axle (no differential). There is a mechanical fuel pump, light alloy 15-inch wheels, and a light alloy fuel tank and body.