I got my X-Ray doing 115mph With a stock motor and Crappy 2400 Nicad Cells.
It did suck when the cop pulled me over and asked why I had a little toy car tapped to the front of my Honda but when I told him that it was so that I could say I had the fastest car on this message forum he let me off with a slap on the wrist.
Well i got my Tyco to do 14,787,006 miles per hour with the stock motor. I was using some nice batteries though,
300,000 mAh Colbalt-Ethelyne-Tetra-Oxide batteries. They're definatley the best batteries i have with over 3.8 volts per cell.