I've got 68,000km on this bone stock R and I couldn't be happier.
I keep trying to think of good reasons to modify this car but it does everything great.
The only thing I have tried is a Mugen ECU to give me access to the rpm I need on certain race tracks, but I don't consider this modified , because I take it out after the race.
We don't consider Hawk brakes and R-compound tires modifications...do we? Upgrades perhaps?
Either way, these cars are the ones to have, everything else sucks!