The Honda's provide heat in the exact same way that a normal car does. They circulate hot engine coolent into a heat exchanger inside the car. They provide as much heat as any other car.

The Prius is very advanced and does 2 things to get hot FASTER than a normal car. In order to heat the engine faster the Prius pumps the hot coolent into an insulated container when you shut it off to keep it hot for the next time you start the car. In addition it can supply electric heat, which is almost instant. I'm not entirely clear about how the electric part works. The main heat source is the hot engine coolent.