I was daydreaming of a similar idea, but it sounds like you have a lot more going for you than I could ever hope. It sounds like a great idea. I'd start by putting together your ideas and posting them in more detail here and setting up a slick website. I suppose their are all kinds of threads of red tape you'd have to negotiate working in a foreign country, but I bet John Lance the Winter Tire Guy might be able to point you in the right direction. Let me know when you're hiring your staff. My German sucks but I could do your airport pickups and transport to the Welt and definitely point out the cheapest ways to get around in Bavaria. Been doing it for 4 decades and have been able to do so because my wife and I are so freakin' cheap.
Home in the Poconos, heart in the Alps. Money in Washington.
2012 BMW 128i Convertible (red) RETIRED
2015 MINI Cooper Convertible (blue)
2014 Ford Fusion (grey)
2015 BMW X1 X Drive (blue)