Please. I got one word for you: Autobahn.
Speed limit is mostly 120-130 km/hr in continental Europe. That is 75-80 mph. Except for Italy where limits are more of a recommendation than a hard no
Where I live highest speed limit 140 kmh - that is 87 mph. Highest limit I have seen in North America was 70mph I think.
The highest posted speed limit in the US is 85 mph in some parts of Texas. I’ve seen 80 mph posted in various places around the US.
When I traveled to Germany in the 80’s I rented a VW Polo that did 135 kph flat out. I quickly learned stay to the right except to pass and watch out for cars in the left lane driving with their left turn signals on. They were moving.
Martin