Short answer: the BMW 3 Series Sedan (2018) is bigger — it is 1 cm0.4 in10 mm longer and 1.9 cm0.7 in19 mm taller than the Audi A4 Sedan (2008).
BMW 3 Series vs Audi A4
Dimensions may vary by trim, market and model year. For guidance only — check with the manufacturer before you buy. Sources are listed on each car's page.
BMW 3 Series Sedan (2018) vs Audi A4 Sedan (2008): the differences
- The BMW 3 Series Sedan (2018) is 1 cm0.4 in10 mm longer, the same width and 1.9 cm0.7 in19 mm taller than the Audi A4 Sedan (2008).
- Its wheelbase is 285.1 cm9 ft 4 in2,851 mm against 280.8 cm9 ft 3 in2,808 mm (4.3 cm2 in43 mm longer).
- Some figures vary by version; see each car’s page for the exact source and variant.
Will they fit? UK parking bay and garage
| Car | Parking bay 4.8 × 2.4 m | Single garage, 7 ft door | |
|---|---|---|---|
| BMW 3 Series Sedan (2018) | Fits, but tight | Doesn't fit | check my garage |
| Audi A4 Sedan (2008) | Fits, but tight | Doesn't fit | check my garage |
Assumes a UK standard parking bay of 4.8 × 2.4 m and a typical UK single garage of 4.8 × 2.4 m inside (2.1 m high) with a 7 ft × 6 ft 6 in (213 × 198 cm) up-and-over door. Where we have no width-with-mirrors figure we add 20 cm to the body width. “Comfortably” leaves about 60 cm to walk round and open a door; “tight” means it goes in but getting out is awkward. Garages and bays vary a lot — measure yours and use the garage fit checker. For guidance only.
See the full specifications and sources: BMW 3 Series Sedan (2018) · Audi A4 Sedan (2008). Dimensions may vary by trim, market and model year.