Short answer: the Audi Q4 e-tron (2021) is bigger — it is 1.3 cm0.5 in13 mm wider than the Volkswagen ID.4 (2020).

Search / Compare

Volkswagen ID.4 vs Audi Q4 e-tron

Volkswagen ID.4 2020 · SUVAudi Q4 e-tron 2021 · SUValigned at front bumper + ground · same scale

Side Front Rear

⇄ Swap cars

Volkswagen ID.42020–present · SUV

Length458.4 cm15 ft 0 in4,584 mm0.4 cm0.2 in4 mm shorter

Width185.2 cm6 ft 1 in1,852 mm1.3 cm0.5 in13 mm narrower

Width incl. mirrors—no data

Height163.4 cm5 ft 4 in1,634 mm0.2 cm0.1 in2 mm taller

Wheelbase277.1 cm9 ft 1 in2,771 mm0.7 cm0.3 in7 mm longer wheelbase

Ground clearance—no data

Boot (seats up)543 L23 L more boot space

Boot (seats folded)1,575 L85 L more boot space

Weight1,891 kg varies by version

Audi Q4 e-tron2021–present · SUV

Length458.8 cm15 ft 1 in4,588 mm0.4 cm0.2 in4 mm longer

Width186.5 cm6 ft 1 in1,865 mm1.3 cm0.5 in13 mm wider

Width incl. mirrors—no data

Height163.2 cm5 ft 4 in1,632 mm0.2 cm0.1 in2 mm lower

Wheelbase276.4 cm9 ft 1 in2,764 mm0.7 cm0.3 in7 mm shorter wheelbase

Ground clearance—no data

Boot (seats up)520 L23 L less boot space

Boot (seats folded)1,490 L85 L less boot space

Weight—no data

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.

Volkswagen ID.4 (2020) vs Audi Q4 e-tron (2021): the differences

The Volkswagen ID.4 (2020) is the same length, 1.3 cm0.5 in13 mm narrower and the same height than the Audi Q4 e-tron (2021).
Its wheelbase is 277.1 cm9 ft 1 in2,771 mm against 276.4 cm9 ft 1 in2,764 mm (0.7 cm0.3 in7 mm longer).
Boot space with the seats up is 543 litres in the Volkswagen ID.4 (2020) and 520 litres in the Audi Q4 e-tron (2021) (23 litres more).
With the rear seats folded the Volkswagen ID.4 (2020) holds 1,575 litres and the Audi Q4 e-tron (2021) 1,490 litres (85 litres more).

Will they fit? UK parking bay and garage

Car	Parking bay 4.8 × 2.4 m	Single garage, 7 ft door
Volkswagen ID.4 (2020)	Fits, but tight	Fits, but tight	check my garage
Audi Q4 e-tron (2021)	Fits, but tight	Fits, but tight	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: Volkswagen ID.4 (2020) · Audi Q4 e-tron (2021). Dimensions may vary by trim, market and model year.