Which one is the best out of scalextric or carrera?

carrera:

Pros: Cheap

Awesome track

easier to find in the US

Cons: Not compatible with other brands

Not the best car selection

cars are slower out of the box

Scalextric:

Cons: More expensive

Harder to find in the US

Pros: Never gets boring

Huge car selection

compatible with other brands

Cars are extremely fast

easy to "Go digital"

takes up less space then carrera

I myself went with scalextric.