Some might not think of the Jeep Wrangler Unlimited as a traditional drop top, but because the roof comes off, it qualifies. It's the only four-door/five-passenger convertible on the market and that arguably makes it the most practical convertible of all. The Wrangler's ride isn't as smooth on pavement as other models on this list, thanks in part to its robust off-road-ready suspension. But the spacious interior makes up for that.

The Jeep Wrangler Unlimited's already-spacious back end expands to 88.75 cubic feet with the rear seat folded flat. This Jeep offers either a multi-panel removable hard top or a cloth top, and the doors can also be removed for the ultimate open-air experience. At a starting price of less than $19,000, the Wrangler is the most affordable model on our list, which is ordered according to price in ascending order.