In the AR6, which was driven in the North American IMSA GTP series from 1986, there was an interesting engine variant.
The powerplant, a 3-liter V8, was revised and carried over by Alba designer Giorgio Stirano into the IMSA car, which also had a longer wheelbase.
Designed to Jim Mullen's commission, it was equipped with a Buick V6 twin-turbo powertrain, which made a good 700 hp (520 kW), and drove the rear wheels through a five-speed Hewland VGC manual gearbox.
Riccardo Patrese's pole position time in the Lancia LC2/85 was twelve seconds short.
[8] In 1986, in addition to the sports car world championship, an AR6 used by Gaston Andrey Racing was also used in the IMSA GTP series.