The petrol CLA has a boot capacity of 460 litres, which is 55 litres more than the electric version . This is because the electric model's underfloor space is used for battery placement, while the petrol version utilizes that area for additional storage . For buyers considering the Mercedes-Benz CLA, that matters because it affects how easy the car is to live with, whether for commuting, family use, long-distance driving or ownership costs. The useful way to read this is not as an isolated specification, but as a clue to how the car will feel in real daily use.