Looking for something that won't cost a small fortune? Meet the economy car. This dependable vehicle is the most booked category of rental car in Iceland (and just the thing if you're sticking to a budget). Fill up the tank for less and you'll be zipping around cities like Reykjavik and Kopavogur in no time.Of course, Iceland is widely known for its glaciers, active volcanos, and mountains. Many adventurers leave the city limits to discover these striking scenes. If that sounds like something you'd be into, consider a full-size car or an SUV. Even if you don't intend to travel off-road, you'll welcome the extra legroom.