Well, I hit the 70,000 mile marker I bought my Prius-C in March 2012 and all is well the only thing done is new tires and oil changes And one day I noticed all 57's on my display, thought I would take a pic of that
I copied this from my website for my Prius Home - A Prius C in Wheeling, West Virginia I keep a diary of the car there I've driven 34k miles, averaged 53 MPG, replaced the tires at 32k miles, oil changes and maintenance every 5,000 miles. I replaced the tires at 32k because they were 3-season radials, I needed 4 season radials, the car had a smoother ride after the tire replacement, I went to Pep Boys and they took care of me, buy 3 get 1 free, then at 60,000 Miles on January 8th 2014. I replaced my front tires with winter tread, it was the best thing to do for this car for traction. Then at 68.469 I replaced the rear 2 tires with new radials