So, at 20,000 miles per year (55 miles per day) with a life span of 5 years, the Prius is on its last legs just as the humungo savings appear on the horizon.
We've had our Prius for 6 years, and we've only had to replace tires. We haven't even needed to change the oil in it.
I don't get the 5 year life span. We're not even close to getting rid of it.