The 2021 Mercedes-Benz GLB-Class is an unusual small luxury SUV crossover. Size-wise, it’s one step up from the company’s smallest GLA-Class but one step below the generally compact GLC-Class. Only to be expected, we guess, with a name like GLB-Class.

However, that’s just a part of this vehicle’s atypical approach. An optional third seating row is rare in a small crossover. Although legroom in that third row is best suited to tweens or younger persons, Mercedes-Benz does make an effort with headroom.
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