Fetch your bags exit arrivals at Frankfurt Airport (HHN-Frankfurt - Hahn), and collect your rental car. Which one you motor off in depends on where you plan to go. If you’ll be mostly driving in downtown Trier, around 31 miles from the terminal, consider something zippy. A compact car with nimble handling will be ideal for those busy streets. But with a wealth of things to see, like the beautiful snowfields of the surrounding region, there’s a good chance you’ll rack up those miles. A larger vehicle, like a full-size car or an SUV, will make lengthier road trips more comfortable.