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Originally Posted by LimaCharlie
I'm looking forward to the 2013 season because Chevrolet, Ford, and Toyota are now allowed to make their own body modifications. For many years in the past, the car bodies were developed by NASCAR. Now the car manufacturers have some influence in body design and aerodynamics. The cars also look more similar to the production street cars in dimension and wheelbase.
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Actually the body dimensions and wheelbase are still set by NASCAR. The greenhouse dimensions such as roof length, width and height are also determined by NASCAR.
The manufacturers are now making the sheet metal for the sides to resemble the production car, the hoods and decklids are carbon fiber, unfortunately no body panels are exactly like the production car therefore are not interchangeable.
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More new 2013 car info: The 2013 season will mark the introduction of the 'Gen-6' NASCAR racecar. At the heart of the new car is a desire to see more competitive racing by cars that closely resemble their showroom counterparts. Here are some of the key changes that fans will notice:
1) Distinct body lines that match street vehicles
2) The "greenhouse" area is the same on every car
3) Longer nose and shorter tail to mimic street cars
4) Carbon fiber hood and decklid
5) New decals on windshield and roof
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