
Sedan hierarchy
The CRT is what happens when the E90 sedan leaves the sleeper lane entirely
The CRT matters because it turns the understated four-door branch into a deliberate collector object. Lightweight materials, deeper factory intent, and far thinner production move it out of the normal E90 comp conversation immediately.
Buyer relevance now
That means the CRT belongs as a halo reference for the family tree and as proof that special editions should live off the family page, not as extra top-level clutter.