When Honda showed the CR-Z concept car at the Tokyo Motor Show in 2007, it appeared alongside some of the wacky Japanese design exercises that the biannual show is known for. The CR-Z doesn't resemble anything else in the Honda (or Acura) lineup. The CR-Z may look even weirder on paper. That original wedge-shaped Insight was rated at 65 miles per gallon in combined city-highway driving (a figure