The inside of the GLA is surprisingly spacious for how compact the vehicle’s exterior is. Four adult passengers can fit thanks to a rear seat that is more generous than the 33.9 inches of legroom would suggest. Although the optional panoramic sunroof lets some welcome light inside the GLA, it compromises the already cramped headroom by lowering the roof liner 1.7 inches.
Even with a usable passenger cabin, there are still 17.2 cubic feet available in the cargo area to swallow up gear.
