Europe consists of 44 different countries with sometimes vastly different developed, and funded, infrastructure.

There is a big difference between the motorways in a country like the Netherlands vs those in Moldova [0]

There is often also vastly different regulations in terms of vehicle safety requirements, and many other differences, the combination of which also leads to quite different per capita traffic deaths [1]

[0] https://landgeist.com/2021/09/07/the-best-and-worst-roads-in...

[1] https://www.euronews.com/2018/12/07/which-countries-in-europ...