both actually, whenever I got too far ahead on the straights though, Id wait for him to catch up before the first turn came up because its no fun unless you can see the other guy sliding the corners
EDIT: Only way to solve this is to do it when the roads clear up. You bring your camera, I'll bring mine. Get a passenger to record eachothers cars and have some fun with it
EDIT #2: He did very well in the turns I must admit, but I was still pullin away.