NASCAR has sent out the 2020 Cup rules to Monster Energy Series teams. With the all-new Gen7 car not due until 2021, many of the series rules for next year remain unchanged.Of particular note, though, NASCAR is going to limit organizations to 150 hours of wind tunnel testing per calendar...

Is the new IndyCar superspeedway wing a weird boomerang, an ineffective showpiece, or an actual downforce-producing device?“Yeah, it’s an actual wing,” said Tino Belli, IndyCar’s director of aerodynamic research.Questions on the topic have come in from fans since the device was unveiled last year, and with its unique shape, featuring...

Every aspect of an Indy car’s performance is transferred to the ground through four remarkably small contact patches. It’s in that interaction between those Firestone tires and city streets at St. Petersburg, or Indianapolis Motor Speedway’s blend of flat surfaces and banking, where Verizon IndyCarSeries teams focus their efforts to...