The sounds are actually the best part of the mod, all of them are more accurate then pretty much any mod created for GTR2. As to the FXX there has been a huge negative response from a good part of the community at RSC regarding that. IMO that's really just opinion based, because none of us or the modders have had any experience on how the car drives apart from some youtube videos. Lets remember the car has 800bhp runs on special Michelin/Bridgestone tires. It is by no means in DBR9 territory in terms of cornering gs or otherwise. It's basically a track special 'road car' and it achieves that very well imo. It's hard to drive but quite rewarding. You have to go about it differently, as in start slow and gradually increase the agressiveness.
I find myself driving this mod more and more.