Can a 2013 Honda Fit last 20 years or 300k miles

I want to save really lots of money so I'm not buying a new car for the next 15 years. My 2013 Honda Fit would be my workhorse till 2033.

When you see the estimate to get the CVT transmission fixed when it fails, you will likely get another car.

Honda, not too likely. Toyota, much better chances.

I don't know about a Fit, but Toyota, Honda, and Subaru are usually in top 10 lists of cars on the road the longest. I had a 1995 Nissan Maxima SE 5-speed for 18 years and never had any mechanical issues with engine or clutch despite competition driving (parking lot slaloms and high speed autocross on 2 mile road racing tracks). I got one of the first ones off the boat May 1994 and traded it April 2012 for a new MazdaSpeed3. My winter car is a 2008 Subaru Outback that was still like new when I bought it over a year ago with 150,000 miles on it.