Hi all. Long term lurker etc etc. I've been enjoying rF2 for many months, it definitely has the highest simulation:emulation ratio of any title out there. Just recently I decided to try my hand at a bit of vehicle modding, the old fashioned way by examining and modifying existing content. I've successfully made a low-powered 6-speed Formula ISI car by playing with the F ISI .hdv, engine.ini and gear.ini for instance. I'm quite keen to try to turn the (IMHO) dreadful Formula 2 car into something I'd actually want to drive too, but in contrast to the F ISI, I'm unable to open the car.mas to access the .hdv etc. So my questions: 1 - is it just me who is unable to open certain .mas files? Is there an official way to access them? 2 - if they truly are locked down, then is there a rhyme or reason as to why certain vehicles are open and others not, given that rF2 is supposedly a modding platform? Any input would be appreciated.