Compared to the gasoline version of the Adventure, Revo & Innova. The Avanza is lightweight and uses a 1.3 engine. It's one of the most frugal 7 seater MPV. The cost of using 2.0liter gasoline MPV/AUV/SUV is 50+% additional fuel cost vs the diesel AUV. While the Avanza will range from 5-10% additional fuel cost vs the diesel AUV. The diesel AUV headache is when it fails the smoke emission test. Wherein you have to get the injection pump calibrated or fixed.