The 1.5 if a different shape. This shape was discontinued. The 1.5 comes in a very ugly mini van shape. If I'm not wrong, its called a prius alpha and a prius C. Different cars. And as far as 40+km/l is concerned. Itll achieve much more than that if u keep it running on the EV (only battery) mode. Once the engine kicks in, mileage goes back down to 20-25.