Is my 2006 Toyota Prius likely to develop problems as the mileage passes 100,000?

I have owned from new a 2006/56 Toyota Prius for five years. At 15,000 miles per year, the current mileage stands at 75,000. It has been maintained by Toyota throughout, and apart from the failure of the main battery at 60,000 miles, which I believe is unusual (and was replaced under warranty) it has proved reliable, easy to drive and averages 57/60 mpg. It has every extra including satnav, leather, voice controls etc, and I quite like the car, except for its vague handling.

I am 77 now and am disinclined to enter into the financial burden of another new, or nearly new, car, but on the other hand I am concerned as the mileage mounts on the Prius, which is now out of warranty except for just under three years left on the hybrid warranty. All things equal, could I reasonably expect 100,000 miles plus from this car?

Asked on 6 February 2012 by DW, via email

Answered by Honest John
Prius IIs used as taxis have been turning in over 400,000 trouble-free miles. But, of course, they clock the miles up quickly. I'm reasonably confident about them. My father has a Toyota Auris HSD hybrid.
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