The carver looks neater than the T-Rex and isn't much more expensive - but the T-Rex is FAAAAST and the Carver is SLOOOOW.
As I wrote, I test rode the Can-Am - what a weird feeling. Going around corners it tilted in the wrong direction (couldn't lean in, so was very disconcerting) and the suspension is very soft.
Brakes are excellent, but there's no hand brake, just the foot one.
Dash is a combination of electronic (LCD display that by default includes a speedo) and analog (speedo). Go figure.
Fast enough for me, but just too bouncy - running at 100 on one of these would be very dangerous in my opinion.
I'm not buying one.