Fetch your suitcase, walk out of arrivals at Baltimore, MD Airport (MTN-Martin State), and pick up your rental car. Which one you jump into depends on where you plan to go. If you’ll be spending most of your time driving in downtown Baltimore, around 11 miles from the terminal, consider something zippy and small. A compact car that’s fuel-efficient will be ideal for those busy streets. But with so many things to see, like the splendid dunes of the surrounding area, you’ll probably be racking up a few miles. A larger vehicle, like a full-size car or an SUV, will make lengthier road trips a pleasure.