I'm having a lot of trouble getting gold in the driving school lesson where you do 5 laps, any tips for that one? My best is 88%

As an aside, after an hour or so of trying, I finally got across the city and back in under 1:40 with no damage, and as I was pulling into the parking lot the rear end got loose and I ended up crossing the finish line thingie backwards - didn't count :| I eventually got it though, after a LOT of screaming and cursing, and now the 5 laps thing is the only gold I still need.
Oh, and where do I get the hot coffee mod?
As far as the RC plane, the trick is to not really mess with the gas too much - it'll fly well enough at idle, once it's up there.
Edit: Ah, got it. I was using the e-brake to stop, but the real brakes are the ticket to the gold. Unfortunately the car is meh
