The Harley is a classic 1f2r trike with all its roll-over tendencies. The Aptera is a 2f1r trike. The Aptera is a cousin of the Can-Am Spyder with less aero drag.
BRP Can-Am | Spyder Ryder
Its really irrelevant. If GM cannot sell $50,000 Volts like hotcakes, its Chapter 11 time.