50mph, right
don't buy that crap
gas (nitro) vehicles are much faster and much more fun; however you need to have some handy skills
on road cars are a blast, hella fast - but you need to have lots of space to run them, and the surface needs to be semi smooth
off road cars are more versatile, but you're still limited in terrain. Pavement will eat through your tires really fast.
You also need to consider what kind of usage your RC invesement will get.
A lot of people are "backyard bashers" - these are people who use their RC in their yard or at the park and enjoy taking HUGE jumps that usually result in breakage.
The cycle for a backyard basher is:
1. go fast, take jumps, do wheelies, burn outs, ram into stuff
2. have tons of fun, provide amusement for all spectators
3. break something
4. tape it on the field
5. repeat steap 1 and 2
6. break something different
7. quit for the day
8. Fix RC
9. goto 1
I'm a backyard basher and a racer, unfortunately i don't know crap about small gas engines (which is why i'm selling my truck) and going back to electric.
if you're a backyard basher, buy something durable.
nothing is worse then spending 5 hours fixing the thing for 10 minutes of fun, only to break something again