I explored Germany in a brand new Saab 9-5 Turbo. It maxed out at 240 k/h, or 149mph. I was passed by only one car, a Boxter. High speeds are not uncommon but you have to watch for the speed zones.
Yep.... Good fun for a young Texan.
Now days I’m running Cummins on the track for my speed fix.
A tweeked drive train an a Cummins 5,9 with compound garret turbos etc make it a fun gofast.