handling.cfg guide?

I've been messing with the handling.cfg file in SA lately. I thought it'd
be cool to have a motorcycle that could biff cars out of the way like a
Rhino. Just increasing the mass gave me some... interesting... results,
but hardly the ones I was looking for. Obviously it's much more
complicated than that. Does anyone know of a guide that explains, in plain
english, what the variables do and how they relate to each other so I could
change a vehicle's handling in a stable manner rather than have it flop
around like a fish out of water?

Also, is it possible to change the handling of the police choppers that get
sent after me when I start trouble? I wouldn't mind hobbling them from
time to time...

-- Bob