Nearly two years in the making, today's NASCAR Sprint Cup Series cars more closely resemble those found on the showroom floor, with eye-catching bodylines and stylish features giving each model its distinctive appearance.

Addition of forward roof bar and center roof support bar to the roll cage reinforces integrity and increases the crush structure of the roof. Larger roof flaps improve liftoff numbers and decrease the likelihood of the car becoming airborne.

Total weight of the car has been reduced by 160 pounds (100 less on right side; 60 pounds on left). Minimum weight of driver has also decreased from 200 to 180 pounds.

With exception of carbon fiber rear deck lid, all body panels are now produced by the manufacturer and individually stamped for verification.

Driver names will be featured on the upper portion of the windshield; sponsor decals and car numbers have been removed from headlight and taillight areas and now appear on front and rear bumpers; also, a single sponsor logo will be permitted on the roof of the cars.