They probably are, given the sales volume. I do believe that, while Toyota should be commended on its engineering, the electric motor is actually beneficial to

They probably are, given the sales volume. I do believe that, while Toyota should be commended on its engineering, the electric motor is actually beneficial to reduce wear and tear on the most expensive parts. This seems to be supported by the fact that are many other Toyota models in the low maintenance list, but only the Prius at the top. The prius is pretty mature now too. And the "synergy" system is licensed to third parties. Nissan uses it on their hybrid models. Disclaimer: Nissan Leaf owner. I am not expecting high maintenance bills either. The only thing that worries me is the weight of the vehicle and the crappy OEM tires it comes with.