Well it's a rear wheel drive car, which means your front wheels would need to be the ones rolling, which can turn, and cause problems. Get a small trailer. The towing section of these forums has a ton of great information about that.
I'd advise against putting ANY car on a dolly. Uneven and unnecessary wear on your bearings, and more of the weight could potentially be shifted to your rear tires, and result in fast and uneven tire wear. Also, you shouldn't rotate the tires on smarts front to back-they are different sizes. Also, with how the car is tilted, the risk is small, but theres also a risk of front end or bumper damage if you hit a nasty bump depending on which end is on the road.