Not because these cars would be so much faster, just quicker off the line. In fact, electric turbocharging doesn't increase top speed at all, but significantly shaves 0-to-60 times-a more useful and apparent measure of speed for most drivers. This is because electric motors make maximum power at low speeds but lack oomph at the higher end. Add all-wheel drive, as the Dualnote concept does, and acceleration is even better because power is going to all four wheels. "With the extra torque," says Hans Glonner, head of hybrid research at BMW, "we can make a 3.0-liter engine feel just like a 6.0-liter engine, without losing any efficiency."