hate to say it but $400 for an electric setup is slim pickings, a SC10 FT kit is already $270, and then a $150 speed passion ESC combo, and then a basic futaba radio is $120, charger is $65, battery is $60, servo is at least $30

you can get by with a SC10 RS combo your right at $380 Ready to go, all you have to do is upgrade little by little but will get your feet wet out of the box. Team associated makes very good race cars, and are one of the most popular so parts are cheap and easy to get.

alternativly, you can race 1/10 2wd buggy for $330 for a B4.1RS combo, these cars are much faster around a track but demand a higher level of skill to master, there is no brushing tubes or other drivers with these, since they are open wheel, they will "tangle" very easily. buggies are my favorite because they teach you how to be a good driver.

if nitro 1/8 is doable, hyper 7 for $300, only thing is tires for this class can be expensive, but the cars are very very tough. when racing you need a tech to fuel you up during a race and tune during a pit stop, so keep that in mind, you really can't race alone.