Usually Toyota hybrid batteries need to be replaced when they are 10-12 years old. If the battery was replaced recently then go for it. If not, you'll need to pay around two grand to replace it soon, so factor that into the price. Personally, I wouldn't go for it. That's a lot of money. If you can deal with a little less space, the Prius is more reliable and a better value. Also gets twice the mileage at least compared to the hybrid Highlander.