Speed of Electric RC Cars

For 1/10 scale, here are some guides to get your electric rc car up to speed.
35 MPH
You will need a 7.2v nimh battery and a powerful brushless motor in the 3500KV range.
45 MPH
You will need a stronger battery such as a 7.4v LIPO pack.
50 MPH
You will need a modified motor (e.g. 3.5T brushless) or an 8.4v [...]