I suspect you're well aware that most (North) Americans look at Europe as train heaven, so we're all trying to double down and milk the train rides.
FWIW, I've driven in Germany and the UK. Germany is nice, the UK feels like a bit of a scam given that they're basically paying similar gas prices, have high taxes, but the roads seem awful compared to Bayern.
The low key dream is to drive across the Pont Millau and Oersund Link, but I'm a weirdo nerd. Most other people just want a pretty B road or Route Nationale.