Hi from France,
Here's how to wear down those "hard as nails" Cooper Cobras before fitting something better!
http://www.dailymotion.com/video/x43...urnouts-8_auto
The trouble with living in Europe is that it's rather hard getting hold of decent tires for 15 inch rims. The only older cars to use 15 inch rims were the bigger BMWs, and they didn't use much wider than 225.
I'm now using Mickey Thompson Street Radials (that I had to get imported - thanks Summit) on my vintage 8 inch American Racing rims:
235/60 R15 on the front and 255/60 R15 on the rear.
The car now sits right - slightly tail up! The only disadvantage compaired to stock size is that the rear fender extensions get hit by loads of stones thrown up by the slightly sticking out front tires (rather like the red Firebird further up on this thread).
Otherwise, the M/Ts grip like nothing on Earth! (Except when it's raining heavily - hello aquaplaning, hello crash....!!)
Best regards,
Rafe