Technology
If Formula One car technology is years ahead of what you find in your own car, NASCAR is decades behind.
A NASCAR chassis would have been out of date in F1 back in the early 1980s. Each car is built from sheet metal wrapped around steel tubes.
The cast-iron V8 engines are based on a construction from the 1960s, still use carburettors instead of fuel injection and have only two valves per cylinder.
s
Although the cars are branded differently – Dodge Charger, Toyota Camry etc… - they are in fact all built to an identical template.