for years, I tooled around in a '56 VW bus with a 59 engine. (still was only 36 HP). 40MPH up hills was good....maybe 55 down, with a long run. And yes, that back #3 cylinder got too hot.
Recently, I acquired an '85 Volvo station wagon as a 2nd car. only 140,000 miles and no rust. One owner. I guess I'm set for 10 more years.