These paper cars are Honda HSV-010 GTs (Honda Sports Velocity), the paper model was created by oniya. The Honda HSV-010 GT is a race car manufactured by Honda and designed to compete in the Super GT racing series.
On October 23, 2009, Honda officially announced the end of the mid-engine NSX Super GT's participation in Super GT racing due to new Super GT regulations that allowed the use of only front engine, rear drive cars. On November 15, 2009, Honda announced that, despite withdrawing the NSX from Super GT competition, it would campaign a car for the 2010 season. Honda revealed that the car will be based on the cancelled 'New NSX' production vehicle. It is reported that although the Super GT normally requires racing vehicles to be based on production cars, the use of a production-ready car is also allowed.
Then, on December 22, 2009, Honda announced the HSV-010 GT as the successor to the NSX Super GT in the Super GT series. Unlike typical Super GT cars, the vehicle is not based on any production vehicle that is made available to purchase by the general public. [Source: wiki]
You can download the paper model templates here: Honda HSV-010 GT Paper Car Free Paper Models Download