Complete BS psuedo math just to set an upper bound based on energy...
Assume 200 amps of draw for 10 seconds, this drops the battery to about 11V. That's 22 kJ of energy.
Assume the motors + drive average about 40% efficiency from electrical power to kinetic energy of the robot, that's 8.8 kJ.
Assume 68 kg vehicle, and E = .5mv^2, then velocity is 52 feet per second.
You'd require many shifting stages with instant engagement, a friction-less environment (in terms of air drag, etc..), and a much longer field though
