35-40 mph with 2s lipo battery
There is a plethora of HPI RS4 videos on Youtube that span not only racing, but endurance and speed testing as well. However, videos can also found on various RC racing enthusiasts websites.
Well, I used a 6000mah 2 cell Turnigy battery. Everything else were original. Attached a Garmin GPS and measured. Result: 73KPH.
HPI and REVOS are pretty good.
It depends what RC car you have stupid
About 20mph out of the box
It depends on your speed controller, motor, and battery. I have a brushless setup on my E10 with a Li-Po battery and several other mods. It goes over 60mph.
HPI Savange monster is broken down by their specifications and what a buyer ask for from the retailer. HPI nitro star .25 (4.1cc) Engine,antenna tube, painted body, tires, foam inserts, 4-spoke wheels.
HPI Baja 5T with pro extreme strong and upgrade worth $10,000
156 mph ????
About 10 mph
Ebay