[Z-man]

[soapbox]
Careful there: you are in an unfamiliar car, and you're taking top speed runs? That is dangerous: both to you and to the car.

Have fun with it, but don't run it sooo fast, man: if that car hasn't seen those speeds, and things are loose (like hoses in the coolant system), you may spring a leak, like you did. Worse: if your suspension is worn, or the brakes are shot, it's better to find out at slower speeds.
[/soapbox]

Get used to the car, then play hard. While I'll refrain from my usual, "take it to the track for high speeds speech," just be careful out there....

-Z.