I know that feeling; after playing with custom cars for a long time, you kinda forget how the vanilla cars handle. But after a day or three, you get the hang of it and actually get better with both. You quickly get used to handling changes such that any new car you drive, you are able to adapt within a minute.
Bullshit dude
SKC have game speed set to 1.05!
all this time I thought it was my damn ping.
The toptimes you make on their server or can be seen there, are really impossible on normal server with unmodified game speed.
@edit: START PLAYING {DOOM}!!! I NEVER SEE U ONLINE!!!