Since switching to front-wheel drive architecture, BMW's 1 Series no longer has the unique selling proposition it once had as a rear-wheel drive hatchback, turning up the heat in its rivalry with the Audi A3. Today we have a look at both products from a dimensions perspective to determine whether the 1 Series is bigger than the A3.
| Model | BMW 1 Series | Audi A3 |
| Length | 4 319mm | 4 343mm |
| Wheelbase | 2 670mm | 2 636mm |
| Height | 1 434mm | 1 449mm |
| Width | 1 799mm | 1 816mm |
| Boot volume | 380-1200-litres | 380-1200-litres |
BMW 1 Series interior dimensions
Audi A3 interior dimensions
Verdict
There is very little to choose between the Audi A3 and BMW 1 Series in terms of dimensions, however, it is safe to say that the BMW is not bigger than the Audi, with the A3, if anything, coming in fractionally larger than the 1 Series.