Well that depends on where you want to go. Downtown Islamabad, about 16 miles from Islamabad Airport (ISB-Islamabad Intl.), can be a little daunting to drive in. Make things easy by renting something compact, fuel-efficient, and a breeze to handle. That being said, Islamabad is a handy base from which to explore some of the mangroves around Federal Capital Territory. If your trip is more about cruising down long stretches of road, then you may like something with a little more trunk space and room to move around. How about an SUV or a full-size car?