One of the things we heard in previous testimony from AUTO21 is that one of the biggest factors in energy consumption, particularly with directives, was the size of the vehicle and obviously the weight. The weight is reduced very dramatically, as in by half.
For buses, what's the history of that from a weight standpoint? I appreciate size is what it is. We hear about the elongated ones and we even have those in London, Ontario, if you can imagine. They'll put on the little attachment, believe it or not. It's true. Has weight been one of the considerations, and how dramatic is that?