theres a turbo 1 which is much more rare, then theres a turbo 2 which is based on the predecessor of the gtt, the renault 5 alpine turbo.

there were some racing variants like the tour de corse etc, i think they were only grp4, not grpb cars. after from what i remember they had a little short of 400hp when in full race trim and rwd, so no chance to beat the real grpb animals.

some of them still around in this country, from what i know they were on fire all the time