As noted here: http://visforvoltage.org/forum/4583-green-rides-campbell-ca
I took the EVT three wheeler around the block a few times..
It has two hub motors, one on each rear wheel, with an independent controller for each motor. The body is an EVT 4000 and the motors are mounted on a dual swingarm and each rear wheel swings independently. The brake levers have latches so you can lock the lever in place -- this is important because with three wheels there's no kick stand and you need some way to lock the bike in place such as if you're on a hill.
There's a toggle switch just above the ignition which switches the vehicle into reverse. While in reverse there's a beep-beep sound that's probably required as a backup alarm. Reverse works pretty well. I was a little surprised the reverse switch wasn't on the handlebar.
Like the other EVT's there's an economy/power mode switch on the handlebar. I didn't spend any time with it in economy mode, and in power mode this scooter is very zippy with great pickup. Of course it has two rear motors and apparently the EVT motor is improved over the one I have. (My EVT 4000 is a 2002 model and there have been 1-2 generations of EVT motor improvements since then)
As an aside.. apparently EVT motors are still brushed (someone had told me the 2007 models and forward were brushless?) but that they're easier to work on now. That's good given the trouble it is to clean out the old EVT hub motor design ... ;-)
It has floorboards kinda like running boards .. but .. for some reason I'm really well trained to put my feet on the ground when stopped, because at every stop my feet went to the ground even though it's a three wheeler and that's not needed. Sigh.
On curves it held the turn pretty well and didn't feel unstable. On the other hand it's limited to 30 miles/hr.
I had two disappointments with the design. First, the speed, at 30 miles/hr, well.. 'nuff said about that, it's an okay speed but there's a slippery slope of wanting MORE. Second is the design decision to reuse the existing body shape.
I think about three wheeler design a lot and it seems to me there's an opportunity to put a big cargo area between the rear wheels. But EVT didn't do this. It's possible the battery box is bigger and if so that's cool. But for a scooter to do a great job displacing a car it has to have good cargo capability.. I have a "four bags of groceries" benchmark. There's enough room to mount some saddlebags and a trunk, of course. But the maker could have made a design that made better use of the space.