 I don't think they're probably made out of fiberglass, but, you know, who knows what they are. Well, like you said, they're very heavy, and the weight is bad for highways. It's bad for the parking garages. You know, the tiered parking garages weren't designed for all the extra weight. What is it, 1,000 pounds more or 1,200 pounds more per vehicle compared to a like model with the gasoline engine?