The current Mercedes-Benz CLA is 4,723 mm long, 1,855 mm wide and — mm tall, on a 2,790 mm wheelbase. It has grown 9 cm longer since the 2013 CLA.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 2013–2016 | 4,630 | 1,777 | 1,432 | 2,699 | 470 | 11.0 |
| 2016–2019 | 4,640 | 1,777 | 1,432 | 2,699 | 470 | 11.0 |
| 2019–2025 | 4,688 | 1,830 | 1,439 | 2,729 | 453 | 11.0 |
| 2025–presentCurrent | 4,723 | 1,855 | — | 2,790 | 405 | 11.2 |
Exterior figures are manufacturer specifications for the CLA, averaged per generation across its variants and shown for the most common body style. Generations with the same size are merged. Boot capacity is the seats-up figure where the manufacturer quotes one.