New this year is a carbon fiber undertray that runs the full length of the Next Gen car’s underside. This lets manufacturers shape the racers’ sheet metal to more closely represent the cars that race fans can buy when they get home. So the series is applying sophisticated aerodynamics that use airflow under the car to control downforce more than the air flowing over the car’s body. What’s more, cars damaged in practice and qualifying now have a better chance of being repaired in time for the race.Īnother factor that is important to the car makers that support Nascar is the need for these “stock” cars to more closely resemble actual production models. This will make repairs at the track quicker and easier and shift some of the workload to civilized weekday hours back at the team’s headquarters. Knowing that crashes are inevitable, teams will be able to have pre-assembled front and rear clips, with all the parts already mounted.
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