European rental car prices have been on the rise since mid-January and are almost certain to continue in the upward direction. By far the best deal in Germany is our guaranteed intermediate to fullsize upgrade with Avis. In the full-size category is very likely you will get a Mercedes C-Class. Plus with that category comes free GPS. The one-week price with tax is $203 through the end of March and $262 for rentals after that date. Get a quote.