These settings are determined by NASCAR and Changing weather conditions may also affect a car's handling. Cup Series cars (often called "Cup cars") adhere to a NASCAR Cup Series engines carry a Freescale-provided Cup cars are required to have at least 1 working windshield wiper installed on the car for the 3 road courses (In 1971, NASCAR handicapped the larger engines with a By 1989, GM had switched its mid-sized models to V6 engines and front-wheel-drive, but the NASCAR racers only kept the body shape, with the old V8 rear-wheel-drive running gear, rendering obsolete the "stock" nature of the cars. The NASCAR Pinty's Series is a NASCAR racing series in Canada that derives from the old In December 2006, NASCAR also announced the creation of a new series in Mexico, the NASCAR Corona Series (now PEAK Mexico Series), replacing the existing In 2004, NASCAR also began to sanction a mini stock racing series in Mexico, known as the Mexico T4 Series. Rain forces a race to be halted immediately because there is no current provision for Presently, the NASCAR Cup Series is held mainly in eastern states, with only six tracks located west of the While NASCAR is known for primarily running counter-clockwise on oval tracks, Race speeds vary widely depending on the track. Under this system, each manufacturer's best finishing representative effectively earned them the same number of points as that team earned, including any bonus points from leading a lap or winning the event.In NASCAR's earliest years, there was a diverse array of machinery, with little support from the car companies themselves, but by the mid 1960s, participation was exclusively American manufacturers with factory support. On December 1, 2016, NASCAR announced it had reached an agreement with In 2017, stage racing was introduced.

Under the post-2010 point system, only cars that actually start in a given race earn owner's points. (Under the new point system, a race winner can earn a maximum of 48 points, as opposed to 195 in the pre-2011 system.) The points in the Owners Championship is identical to the Drivers' list, with one minor exception: Drivers who are not eligible to earn points toward the Drivers' title can still earn points toward the Owners' Championship. This meant that if Chevrolets placed first through tenth in a given race and a Ford was 11th and a Dodge 12th, Chevrolet earned 9 points, Ford 6 and Dodge 4. They were joined by two "wild card" qualifiers, specifically, the two drivers with the most race wins who were ranked between 11th and 20th in drivers' points.

Races were broken up into three stages, four in the case of the NASCAR Cup Series' longest race, the Coca-Cola 600. NASCAR Driver Points System FAQ. In 2014, NASCAR announced another revamp to the Chase format, expanding the Chase pool to 16 drivers, and eliminating four drivers after every three races, leaving four drivers to compete for the championship at the season finale at After the 2019 season, NASCAR declined an offer from Monster Energy to remain the title sponsor of the top series.The NASCAR Xfinity Series is the second-highest level of professional competition in NASCAR. The winner also receives 3 bonus points, and single bonus points are awarded to all drivers who lead a lap, plus the driver who leads the most laps. The bodies and chassis of the cars are strictly regulated to ensure parity, and electronics are traditionally spartan in nature. This means that four drivers are eligible for the series title entering the final race, as in the Cup Series.Even with restrictions limiting points earnings to one national series, Cup drivers were still running and winning a vast majority of Xfinity series races through 2015.

These points determine who is in and who is out of the next race and have become crucial since the exemption rule was changed to its current format. The series was created as a developmental league by NASCAR and The Pro Invitational Series was established in 2020 after NASCAR's live racing circuits were forced to suspend operations due to Although NASCAR frequently publicizes the safety measures it mandates for drivers, these features have historically only been adopted long after they were initially developed, and only in response to an injury or fatality. If an owner enters more than one car, each car is viewed and scored as a separate entity. The format is identical to that used in the Xfinity Series, except that only eight drivers qualify for the Chase (instead of 12 in the Xfinity Series) and only two drivers are eliminated at the end of each preliminary round (instead of four in the Xfinity Series). Starting in 2019, Cup drivers with more than 5 years of experience in the Cup series will be limited to 7 Xfinity races per season.

The winners of the All-American Series National Championship, the K&N Pro Series East and West championships, the two Whelen Modified and Grand National Divisions, and the three national series are invited to Las Vegas in December to participate in Champions Week ceremonies. Starting in 2014, NASCAR changed the system to mimic the Owner's Championship. These changes were made so the cars would resemble their street counterparts more closely, as was done in the All NASCAR Cup Series cars began utilizing a digital dash sold by The automobiles' suspension, brakes, and aerodynamic components are also selected to tailor the cars to different racetracks. Red Byron was the 1st NASCAR Champion.