Have you considered the GV Rex X. I have just bought one of these and think it is fantastic. Not sure if you can get these where you live but in the UK they cost about £200 for the car with engine (Force .21)

[link=http://www.three5models.co.uk/rex_x_data.htm]GV Rex X[/link]

[link=http://www.rcuniverse.com/magazine/article_display.cfm?article_id=100]X-Terminator RTR[/link]

In America they do the same thing but its called the X-Terminator RTR and has a Big Block .247.