My first car was a Morris Marina hatchback. I didn't learn to drive until I was in my early 30s, so I was never a 'boy racer' but I did like a bit of speed. The first part of a new motorway was open between just two junctions which linked nothing of importance and very few people had a reason to use it. I decided to test this very heavy and already old-fashioned vehicle to see how fast it would go.
I chickened out at 100mph on the dial and have never been that fast since. If you want to drive between Jcts 4&5 on the M42 today, you will be lucky to get up to 40mph for much of the day as the road is so congested.