'Fraid not. I'm 55, and I'm happy at 70mph.

What has changed (albeit over the past 10-15 years) is a deepening unwillingness to break the speed limit. Not that I was a speed demon before; but the realisation of just how little difference 5-10mph extra generally makes took till my 40s really to sink in. These days, I really only go above whatever the limit is if I need to for safety reasons. As my advanced driving observer said years ago: safety first, speed limit second, on the fairly rare occasions that they don't coincide (and on those occasions you probably should've driven better earlier to obviate the necessity...).

57 year-old here. Funnily enough, the camper van has adaptive cruise and I almost always set it to 62mph/100kph so your law is has some additional support.

Just fast enough to efficiently overtake HGVs, and not hold them up as they sit on their speed limiter but also slow enough to be able to spend long periods in lane one not stressing about what's going on in front and behind all the time. The cognitive load seems lower, consequently reducing fatigue.

I used to drive far too fast and two things changed my habits significantly nearly 20 years ago. First was a one-off, I was visiting an old friend from university who lived near the A1, she wanted to visit a couple of people who lived 15 miles or so north of her home. I noticed how (relatively) slowly she was driving and started to wonder what had happened to her previously heavy right foot. Then I realised that we were having a conversation, and instead of trying to get ahead of everything, we were able to relax and talk without having to worry about the rest of the madness hovering between throttle and brake. Secondly, about the same time, was my starting to use a sat-nav and discovering that driving like a fast "eejit" made very little difference to my arrival time, Perhaps 2 or 3 minutes in an hour's journey, if that. Finally a decade ago, a move to rural West Cork in Ireland completed the transition to patience and sanity.

Interesting: 71 here.

Yes, although at times a fast car driver and motorcycle rider in my youth, I fortunately survived virtually unscathed, and undoubtedly the speed at which I have felt subjectively comfortable in any road situation has reduced over maybe the past 15 years. I now strongly identify with the sentiments expressed above about the minimal impact of speeding on arrival times!

A couple of technological developments have further contributed to my slowing down:

I was an early adopter of TomTom GPS units and now apps, and having a highly accurate digital speedometer that shows red once you're 3mph over the limit is a help.

Secondly, my current BMW has well-designed cruise control and a speed limiter, which I use a lot. At motorway speed the cruise reads 3mph over when checked on the app, so I tend to set it at 73, while the speed limiter is fantastically useful around town and especially in 20mph zones, where there’s obviously much more variation from traffic. You can instantly over-ride the limiter in several ways in any emergency needing a sudden burst of speed.

Another inhibitory factor is fines & license points (and consequential insurance hikes). Although in theory you can be pulled up even 1mph over, in practice in the U.K. you’ve usually got 10% over plus around 1mph grace. It’s said to be significantly less in France, by the way. Furthermore, you’ll normally be offered a speed awareness course with a wider margin - I think the limit is around 43mph in a 30 zone. Fortunately I’ve only ever had one speeding fine in my life, in around 1990, but I think this risk does weigh a bit more these days, too.