In my first post I said AutoTopNL use the A73, but I meant A3. The A73 is in the Netherlands.Just read back through this thread, some great information posted. Now that restrictions are relaxing this trip can take place in the not to distant future. Currently planning on a ferry from Hull to Rotterdam, and then drive over to Duisburg and locate a suitable stretch. Harwich to the Hook of Holland is also an option. I will likely stay a few days, plus it will give me time to recon any runs.
Currently sorting out who's coming with me on my side, then got to run some checks on the car, then I should be ready. Car is running MPS4S Tyres now, so comfortable with it hitting the 190 range.
Be wary of speed limits. The Polizei will fine you if you’re caught. Roadworks often have radar as well.