How fast is an r. c. car?
Clocking a hobby-grade RC vehicle at top speed using a police radar gun will likely produce a speed range of 10 to 70 mph. Some dragsters and specially-modified RCs can top speeds in excess of 100 mph, but such RCs are the exception, not the rule.
It depends greatly on the model. Some model remote control cars that burn fuel can exceed 30 miles per hour. Most average 5 to 8 miles per hour.