Well thats the idea isnt it with the upgrades - liek originally said in the brochure fort the Cup a series of performance upgrades will be available to turn your car into a full on race car for the road and track - and to go rallying the car had to be to Grp N spec - thats why the cup is homologated for Grp N rallying and thats why it dont have airbags, or ABS or any luxuries - a grp N car aint alloweed these! Just liek peougeot had to make 400 206 GTs for the wrc 206 to make it into rallying!
And for those of you who dont get this homolgated thing - read the flippin cup brochure and stop arguing! If renault wanted to go rallying they could have just used the standard 172 - wrong the FIA wouldnt approve that for reasons I have previously listed! thats why the cup was produced as a basis for a homolgated Grpn N track or rally car.......................and thats wh\at the upgrades will be for ideally - Grpn N cage, discs/pads, ECVU. filter relocation, race seats, weight loss and all the other things needed for a Grp N car. Grp N cars are basically have to be identical to their showroom brothers and sisters except they are allowed a few choice modifications to the engine - such as compression ratio altered, new ECU, headwork, valve springs, lightened conrods, and pulleys etc plus the interior mods and suspension/brakes etc. Its very strict and rightly so.
Hope this helps