I couldn't say for certain, but I feel like people in the UK run cars much longer than Americans as they don't do as many miles. It's not uncommon to see cars in the UK around 15-20 years old (often not older as there was a trade-in scheme years back)

The rule of thumb in the UK is a car gets about 10k miles per year and "modern" cars tend to last about 150-200k miles before they're not worth the repair costs.

For example, my car is a 2005 Focus which I recognise is older than most cars on the road, but costs me a couple hundred quid in maintenance each year and I have no intention in upgrading until it becomes uneconomical