The Generation 6 car, shortened to Gen-6, is the common name for the car that has been used in the Monster Energy NASCAR Cup Series since 2013. The car was part of a project to make the cars that NASCAR used look more like their street-legal counterparts. The cars have used many different aero and downforce packages to improve their racing characteristics as well as using the safety measures added in the Car of Tomorrow. The Generation 6 car has received both praise and criticism from fans and drivers.
The body style was introduced in the 2013 Daytona 500 and is still used as of 2017.
In 2013 NASCAR allowed the car manufacturers to design a brand new body style for the CoT chassis so that they would better resemble the street legal versions of what the sport's fans could purchase and drive. Another hope of the Generation 6 car was that it would give more grip and speed to the drivers and more great racing action to the fans.
During the 2012 season, it was announced that Ford would use the new Second-generation Fusion,Toyota would continue to use the 2013 Camry, while Chevrolet would use the SS (a re-branded version of the Holden Commodore GM sells in Australia, which was previously sold in the U.S. as the Pontiac G8), replacing the Chevrolet Impala.Dodge announced they would use the Charger. However, soon after, Dodge announced its withdrawal from the sport, after being unable to convince other teams into switching to Dodge to replace Penske Racing (which returned to Ford in 2013).
For the 2015 season, Toyota updated its body to match the updated 2015 Camry, marking the first vehicle design change since the adoption of the Generation 6 body.
For the 2017 season, Toyota updated its body to match the new 2018 Camry.