The big battery is expensive, but I cant remember anyone saying they had to change one. Remember, a petrol or diesel car has a starter motor, an alternator, a clutch assembly. How much do they cost when they go, and thats likely to be more frequent then a big battery. Dont know about other manufacturers hybrids but Toyota Prius/Auris, plus others in the range and Lexus, do not have such wearable parts.
How much warranty would you like on the big battery. See Heidfirst last post. I thought the Toyota warranty ran up to 10 years, but if you have it checked during the last year (week 52 if you like) then it makes 11 years. I think that shows Toyota have faith in their product.
My on board computer shows that, on average, over 50% of journeys are on electric. Whats wrong with that.?????
I used to be a diesel owner - for the last 26 years before changing to Toyota Hybrid (Auris/Prius), my diesels were doing over 60mpg mostly (Yaris and Quashqai), was sorry to let them go, but times are moving forward. No doubt soon, when battery technology means smaller/lighter batteries/lasting longer, Toyota will come out with pure battery cars. Until then I think a Hybrid is the way to go, self recharging battery, not tied to a cable.