No they shouldn't get a reduced rate as it is still a automobile...
Most insurance companies give little discounts for air bags, alarm systems & daytime running lights. They also give a little discount if you have a squeaky clean driving record...
The only thing I think, we Hybrid owners should get is the tax break every year..
At work we do not call them accidents they are traffic crashes, did you know the air bag deploys at 200pmh and it makes contact with a human face it can peel a cpl of layers of skin..