The J2X-C had bodywork that is more reminiscent of modern Le Mans Prototypes than a conventional Group C car, but the engine proved too weak for the level of downforce, and this, coupled with the fact that Allard Holdings were liquidated during the car's development, severely restricted the J2X and prevented it ever reaching its potential.
[1] The gearbox was also from an F1 car: a Leyton House-March Engineering 6-speed sequential manual transmission modified for endurance racing.
[3] With the J2X-C far from being completely developed, Allard Holdings were liquidated in the first quarter of 1993, and the car was sold to Robs Lamplough for £76,000.
[8] The car was clocked at just 172 mph (277 km/h) down the Mulsanne Straight,[4] and this led to Lamplough opting to not run in the 24 Hours of Le Mans race.
[3] Lamplough held onto the J2X-C for a while, but eventually sold the car, which then passed through the hands of several owners before ending up in Canada.
[3] Most manufacturers considered the radical bodywork just too great a risk, as Spice Engineering's lead designer, Graham Humphries, stated; "With limited resources, it was decided instead to follow the more conventional route of further developing what we knew.