Hi,
Go to your Nascar heat folder ... then ukdirt bangers folder ... then which ever set of cars the one you want to change the wheels on is in, there will be unlimited under 2litres etc .... go into the folder of your choice find the drivers text notepad then find the car you wish to change the wheels on,
if the text looks like this ..
table Driver
number 239
name Nemesis239
chassis mk3cedric
rank 1
race_image 100
body_style ccar
end
you need to add the wheel_basename part into the text so it looks like ....
table Driver
number 239
name Nemesis239
chassis mk3cedric
rank 1
race_image 100
body_style ccar
wheel_basename 300cwheel
end
here ive got 300cwheel just erase the wheel thats there if any there at all then add the wheel you want.
Hope this is clear enough
Cheers
Steve