Nissan GT-R. Nissan has sold a number of sporty cars over the years but sporty doesnât begin to describe the capabilities of the GT-R. The Nissan GT-R is a high-tech supercar that can hold its own with the best performing cars in the world. It is also the most expensive Nissan ever sold in America, but compared to other ultra-high performance cars, the GT-R is a comparative bargain. For more new car reviews, interviews and automotive news visit http://www.kbb.com today.