[Johnno]

Carrera track has a much larger "footprint" than Scalextric.
You will need more space for the same layout.

Yes, the quality is there with Carrera, while lacking in all Scalextric products, cars included sadly. We can see exactly where Hornby are placing their profits and that's in their AirFix models, model trains, their real 1:1 train museum and restoration projects.