[Mike T]

I am surprised it's this close to the B Class.

The New B Class has 1013 mm of front headroom and 985 mm of rear headroom. Rear legroom of the new B is 728 mm. And the B seats 5; the CLA only seats 4.

The CLA has 30 mm more rear legroom than the (cramped) C Class...

 

[Mike T]

It's actually better than the C (660 mm) and close to the E (which has 711 mm of rear legroom). The CLA has 690 mm.