The other funky box-shaped car on the list is the Nissan Cube which has grown in popularity over the recent years. Similar to many of the other vehicles on the list, the Cube has a 1.8-liter, four-cylinder with 122-hp and 127 lb-ft of torque. The CVT transmission gives the Cube 27-mpg city, 31-mpg highway while those that opt for the six-speed manual will get 25-mpg city, 30-mpg highway. We reckon the Cube will be an even more popular choice once the Scion xB is discontinued forever.