Like other parts of the new car, brakes are still a work in progress. Brake supplier Brembo has a strict and lengthy process when it is creating a new braking system.
Wheels used in NASCAR rarely get mentioned in race coverage. And that's a good thing for the manufacturers that exceed minimum safety standards.
Learn more about bump stops, which help keep the front end of the race car low to the ground by limiting the upward travel or compression of the front suspension.
NASCAR's new car, or COT, has made remarkable strides in safety, but some design features have created problems with heat inside the cockpit.
Switching from a spoiler to a rear wing has proven to be more than just an aesthetic change as NASCAR teams are still learning to adjust aerodynamically.
How can Sprint Cup teams accurately test engines without leaving the shop? The richest ones use an AVL dynamometer to make an engine think it's in a car on that week's track.
They don't make 'em the way they used to, but what drivers and mechanics of days gone by lacked in schooling they made up for in good, old-fashioned intuitive physics.
NASCAR team crew members are constantly taking temperatures and other measurements to get all four tires to achieve maximum grip during a race.
Through necessity and the need to protect drivers, crews and fans, fuel cells have evolved into a far safer part of on NASCAR Sprint Cup cars.
Racing a full slate with the COT created uncertainty and heightened expectations, so here's a look at the new car's impact a quarter of the way through the season.
The COT has brought a refocused reliance on suspension versus aerodynamics and drivers are still adjusting. Bill Borden explains the nuances of tight, loose, balanced and neutral.
Keeping tires firmly planted on the ground requires choosing shocks and springs that work in concert with each other and with specifications for each track.
In a constant game of cat-and-mouse, NASCAR enforces rules to rein in speed while teams do their best to build the fastest and most powerful engines.
Keeping four tires firmly planted on the ground requires creews to choose shock absorbers and springs working in concert with each other and with specifications geared toward particular tracks.