Hi Lars,
The number 96 car of mine was a right-hand drive from the factory and still is. The rally car number 8 was also right-hand drive from the factory but was later converted to a circuit car and left-hand drive. It is far easier to get a decent exhaust system installed without the steering box in the way as with RHD, and circuits here tend to favour LHD. I believe the 107 car has been modified and is essentially a 2002 Ti engine with S14 crank, pistons etc.
Regards
Alan