hmmm. . .
Things that I would chose if I had a 500 max for an electric car:::
1 Decent charger. Someone else will have to help you with that decision (I still cant find one I really want in my price range)
2 Extra battery packs
3 An FM 75mhz transmitter with crystals
4 An good ESC (electronic speed control) with reverse
5 car:
a: HPI micro RS4, these are 1:18 scale cars that are extremely fun, not great for street use especially if its not blown off or very smooth.
b:
Associated TC3 from what I hear its a GREAT platform with lots of hop ups if you get addicted and need more speed, or want to race
c: HPI sprint, entry level car but has many upgrades
d: HPI RS4 Rally, has a greater ground clearance so you can race around baseball diamods, short grass, take bigger bumps cracks and holes,
e: Kyosho Mini Z, I've heard mixed review so I cant really give a good opinion, although there are on and off road versions of this.
b-d are all 1/10 scale. e is a 1/18 if I am not mistaken
What would I chose? well either a or d... But most likely "a" because I already own a truck for outside.
Corvette bodies will fit all of the above.
Those are some of the highlights from my search at Tower Hobbies. Before you buy, price shop! Tower does not always have the lowest prices.
http://www2.towerhobbies.com/cgi-bin/WTI0097P
I hope this helps a little