Just about to suggest this car too... It was built off of a modified Spice chassis and powered a derivative of the Countach's V12. Sadly, money ran dry and the project shut down... Either way, you've got my vote! Also, a history involved with the project can be found Here.
The car was not really made by Lamborghini, the chassis was made by Spice-Engineering and the engine provided by Lamborghini's Countach.
This car only managed to take part in one race that happened to be a non-championship race which was the 500km Kyalami in 1986.
But the car shown strong potential with Tiff Needell bringing the car to 5th place ahead of Porrsche, Tiga and Rondeau with the highly experienced Porsche 962's ahead.
Despite having many opportunities to race, most notable the 1986 Le Mans, the team were not able to make an appearance at all accept one.
The car was retired in 1987 due to the teams harsh financial struggles.
