Best ESC (Most powerfull) for 6 lipo cells

[E-Revonut]

A speed run car isn't nearly as heavy as a 1/5 scale concersion LST2, Unless you had it geared for 200MPH I doubt the motor would ever see 200 amps and if it did it would only be as a burst. What kind of speeds are you trying to achieve and with what vehicle? I think the MMM would most likely be able to handle it and if not the MMXL should and you could run 8s with the XL