This is not the first time we have seen the Nissan IDx Concept, but it made enough of an impression to be included on this list.
This little concept is a perfect competitor for the Scion FR-S and Subaru BRZ, as it has many of the same attributes. It is light weight with the engine in the front, sending power to the rear-wheels. It is also a small sports car like the FR-S, coming in at 13.5 feet in length and 5.9-feet in width which helps to house 225/40R19 tires.
There is one dark spot hanging over this concept however, and that is the transmission. Nissan says that power for the car will come courtesy of a 1.6-liter four-cylinder turbocharged engine which is unfortunately mated to a CVT, although it does feature a 6-speed manual shift mode and synchronized rev control.