Gran turismo 4 Top speed

[viper mad 101]

Hi guys just wondering if any one could beat my personal best on GT4.I got 278mph out of a tuned TVR speed 12 on sarthe circuit 2 (thats the one with the long straight).Feel free to post any personal best's.

[viper mad 101]

Is that mph or kmh

[viper mad 101]

Just beat my own personal record!!!!!My record is now 292mph in a cerbra speed 12