First of all, there's a broad range of luxury rental vehicles available in Ostalbkreis. What you end up going with is largely dependent on your budget and what you plan to do. Prestige vehicles are hard to beat if you're all about comfort and class. If you want to indulge yourself, why not book a high-end SUV, or perhaps a cushy mid-sized sedan? Alternatively, if you're just after something to whiz around town in as cheaply as possible, stick with a versatile compact vehicle (or something else that won't blow your budget).