I have a RSX (St. 2, 10 tooth, bearings, stiff springs all around, 1.5 tierod, body kit, 4 cells, custom paint,)and i was down at the tennis court by my house and i found out that from the back of the fence to about 2 feet past the net it almost exactly 50ft... with fully charged batteries...we timed it 3 times and the average was 4.8 seconds