system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Are all of the cars in NASCAR the same? If each driver isn't driving the same type car, is it considered fair?
gpt
They're not *exactly* the same but there's strict regulations on pretty much every aspect of the car so no one car should really have any significant performance advantage.

OTOH, how the teams choose to tune their car for a particular track and racing conditions can give the team an advantage.  That's part of the sport.