Mid-Mo Car Shopper 
2016 Toyota Prius c Hatchback Four 4dr Hatchback (1.5L 4cyl gas/electric hybrid CVT)
In the end we bought something else
 My husband and I are both 70.  We are conservative, very conservative, and the idea of buying a high-mpg car usually drives our car searching.  We were pretty sure we were going to go with a Prius and we narrowed it down to a Prius C Four or a Prius Three Touring.  We wanted the amenities of leather seats and a navigation system.   We were tired of allowing time to get lost every time we were going to a new location.  We drove a Prius C Four first - it was bright yellow, which was probably not age-appropriate, but we liked it, except for one thing . . . the way the engine groaned when you needed it to climb a hill.  We loved the car more than we had expected.  Then we drove the Prius Three Touring and there wasn't anything about it we didn't like.  The price difference between the two cars was about $4000.  We were trying to drag out the shopping timeframe to guard against an impulse buying.  Our sales person told us about his Prius Four Touring that he had just traded in the day before.  It wasn't ready to test drive, but we looked at it and noticed it had the blind spot detectors.  It was 3 months old and had less than 4000 miles on it.  So the idea of that car was just hanging out on the "back burner" for a week or so.  Another dealer let us take either of the cars we were interested in over the weekend.  So we took a Prius C Three (they didn't have a four at that dealership) for the weekend.  So on Saturday, we took the borrowed Prius C on an outting that took us to the dealership with the Yellow C Four and the Used Prius Four Touring.  We drove that yellow car again, and still liked it.  Then asked to drive the used Prius Four Touring.  Our original salesman was off that day, and they were busy, so they let us drive the Four Touring without a salesperson in the car.  We hardly drove off the lot before we looked at each other with eyes of super approval.  When we got back to the dealership, the substitute salesperson was nowhere to be found.  We waited about 20 minutes and then just left and took the borrowed Prius C back to the other dealership.  I emailed the original salesperson and told him we wanted his Four Touring.  And two days later we took it home.  It still growls a little going up hills from a cold start, but not as much as the C did.  In the end, it was the extra safety features that sold us on the car, . . . afterall, we're not as mentally sharp as we once were.  :-(