I have a few 1/18 CMC models. Pretty nice details for the price.
Those are real wire wheels with very accurate tires - all the markings, tread and logos appear to be period correct. The upholstery weave presents 'as to scale', the removable parts fit very tightly and the paint finish and decal work is top-notch.
Instant gratification, and I could never in a million years build a car to this standard of quality.