I used the SRT4 becoz
1 - It is cool
2 - Manuevering at high speeds
3 - NOT a car which is ugly
But later, after i won the city tournament and got the is300, i sold BOTH and got the Lotus Elise - IT COMES WITH GREAT PERFORMANCE EVEN MORE THAN THE SRT4 IN LEVEL 2 UPGRADES. And it has a nitrous tank by default without performance upgrades. Also, i couldnt upgrade it further from stock becoz the performance shop is locked. Well, i say the Mitsubishi Eclipse is also cool, and Venessa uses that