Quote Originally Posted by DrunkenRainbows View Post
be able to move about 450kg dry. be able to go at least 80mph
Um, I'm no science geek but the shear physics involved in moving that mass at that speed wouldn't be doable at any kind of sensible feasible budget.
I've delayed my project because I thought the ME0913 or ME1115 wouldn't be powerful enough to get me any kind of decent acceleration to warrant the price of everything and effort involved.
Not saying it can't be done.The more weight you're pulling at speed requires more current. More current, more expensive controllers, larger wiring and larger contactors as associated paraphernalia.

Perhaps you could use dual motor setup. It's up to you. It's only my two cents. Happy to stand corrected if I'm wrong.