This is a really great mod. If you are into high res graphical top notch cars with ultra hifi sound, skip this one, this is something else. It is a document in the history of sim racing. I have never had the chance to race in a Geoff Crammond's Grand Prix racing game with a decent steering wheel. So now having this in rFactor is great. I am happy the the original 3d resolution and original skin resolution are used for this mod, which makes it possible to see how much progress has been made through the years. Same goes for the sound. But the driving is like rFactor standards, so it is real fun to drive these cars.
To make it complete it would be nice to also have the Grand Prix 4 cars.
2. It seems you edited the driver name in the .rcd talent fie and the .veh vehicle fie, please make sure the driver names are all correctly spelled and all cars have their own talent files. If a driver with low talent settings always gets on top, that means this driver doesn't have his correct talent file.
3. Have you edited the field called "QualifyingAbility"? That value is a bit tricky, if you run a race without qualifying, the driver with the lowest value will be on pole position. The lower the value, the higher the grid position the driver will get. (QualifyingAbility means the average grid position the driver gets in qualifying.)
Hope these tips will help you!