There is already a thread on this! I tow an imiev regularly. Check out the other thread http://myimiev.com/forum/viewtopic.php?t=177
I tow it behind a motorhome so that when I arrive at my campsite I have a vehicle to run around in. I tow with the rear wheels on the dolly! The i-miev should only be towed rear wheels on the dolly if the vehicle is off. There has been some thought that it could be towed rear wheels on the ground if it was left in the on (ready mode) and with transmission in drive (eco, B, N) but this has not been tried that I'm aware of. One reason I don't feel like this is a safe option is because the i-miev (unlike other cars) has all it's weight at the rear of the vehicle. Having a fairly light load on the dolly and most of the weight at the rear could cause the rig to start swaying. This is opposite of a regular vehicle. Towing rear wheels on the dolly has been done numerous times and extensively. One tow was 1800 miles from West Tennessee to Central Florida and back.
I do leave the transmission in neutral so that the rear axle works as a hinge when the rig moves up and down going in and out of driveways. This requires the key to be left in the ACC mode. Turn the radio off manually (if equipped with the Nav stereo, turn off the screen as well). Lock the front steering straight using two ratcheting straps attached to the steering wheel and secured to the front seat belt anchors. I'll likely get a note from JoeS to post pictures! Yeah, Yeah I know, I still need to do that. Maybe he's still in Florida playing with his Tesla and won't notice?