I'm no speed demon either, but two things I found that finally helped me
get under the benchmark were first, the left handers are much faster
than they look, and secondly, on that last turn before the start/finish
line (forget the name) if you trail brake lightly almost all the way to
the apex you can both come in a lot hotter and power out a lot faster.
For the left handers it seems like you have to really use the road
camber and you have to get right back on the throttle immediately after
turn-in to get them right. Touch the brakes, point the car, get back on
it (with control of course). All of this is shown in the replay which
comes with the game btw, it's just that (for me at least) there is a
large gap between seeing it done right and doing it right myself. ;o)
In fact I spent about four hours Friday night trying to shave off the
last 0.06 that I needed to nudge under the benchmark. Actually I nailed
it after three hours but failed to notice, I was so obsessed (still
haven't broken the magic 1:30 though). I think my poor son thought I
had seriously flipped out and needed to be committed. By the way guys,
have I ever thanked you for getting me ***ed to this damn game?
Thanks a buttload! ;o)