I wouldn't be too quick about getting hand controls on a 'disabled' car, one of the worst low speed hits from behind I've ever had was from somebody who drove one of those. Then he claimed because he was handicapped he shouldn't have to pay for running into the back of me because his hand 'slipped' on the controls. My car got what later proved to be $1200 damage but the investigating officer lowered his personal estimate to 'under $250' to not report the crash as he knew the disabled guy. I ended up feeling pretty much used (and with a wrecked car not of my doing at all, I was sitting still at a traffic light) after the whole thing.
None of that applies to the poster of post #7 though, just thought I would throw in the thing about hand controls, they are NOT that precise.
The car bumping forward is likely the CVT trans if one used there, they tend to do that sometimes at the pulley reset that happens at a stop, the pulleys have to refigure the starting gear ratio quickly from what was a a cruising one and only a second to do that. A/C in and of itself can bump the engine but has no power to bump the entire car at all. ALL CVTs in car transmissions that I have run across also do indeed have a torque convertor, they cannot function without it. The slip method a CVT uses with no convertor will not work in a car like it does on industrial equipment, I worked on them for years.
The cars are very light and slab-sided to boot, perfect for getting blown around in strong winds, mine does it too.
None of that applies to the poster of post #7 though, just thought I would throw in the thing about hand controls, they are NOT that precise.
The car bumping forward is likely the CVT trans if one used there, they tend to do that sometimes at the pulley reset that happens at a stop, the pulleys have to refigure the starting gear ratio quickly from what was a a cruising one and only a second to do that. A/C in and of itself can bump the engine but has no power to bump the entire car at all. ALL CVTs in car transmissions that I have run across also do indeed have a torque convertor, they cannot function without it. The slip method a CVT uses with no convertor will not work in a car like it does on industrial equipment, I worked on them for years.
The cars are very light and slab-sided to boot, perfect for getting blown around in strong winds, mine does it too.