The amount of amps are depending on a lot of factors.

2 or 4 wheel drive. 4 Wheel drive needs a lot more amps.

High top speeds need more amps.

Very grippy wheels. More amps.

Team RCC's current Featherweights.
Hannibalito 3. Speed 900/MSR 12-54 Drive.130mm wheels. 4S A123 (13.2V) with Scorpion XXL. Bloody fast, extremely agile, but lacks pushing power due bad geometrics.

Hannibalito 4. 2wheel drive, Gimson 9.6V GR01's, 170mm wheels. 3S (11.1V)LiPo pack and Scorpion XL speedo (25A limited). Drives very controlable, but lacks pushing power.

Kashei. 2wheel Speed 900/MSR 12-72 drive. 100 mm wheels. 6S LiPo (22.2V) with Sidewinder. . Extremely nervous control due center of gravity positioning of the wheels.