Since its introduction, the Smart fortwo has been the undisputed winner in the smallest car category. Loved or hated, no one could deny that the Smart showed how small a small car could be. In 2009, the Smart finally got some serious competition. Toyota's tiny IQ is a shade larger than the Smart, but seats four people instead of just two. drive it! tester Mathis Kurrat put the two minis side-by-side to see how they compare.