Short answer: the Land Rover Defender (2019) is bigger — it is 9.7 cm longer, 24.8 cm wider and 13.6 cm taller than the Mercedes-Benz G-Class (1990).

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Land Rover Defender vs Mercedes-Benz G-Class

Land Rover Defender L663 · 2019 · OffroaderMercedes-Benz G-Class W463 · 1990 · Offroaderaligned at front bumper + ground · same scale
Land Rover Defender · 475.8 cmMercedes-Benz G-Class · 466.1 cm Land Rover Defender · 197.2 cmMercedes-Benz G-Class · 183.6 cm
Land Rover Defender L6632019–present · Offroader
Length475.8 cm15 ft 7 in4,758 mm9.7 cm longervaries by version
Width200.8 cm6 ft 7 in2,008 mm24.8 cm widervaries by version
Width incl. mirrors—no data
Height197.2 cm6 ft 6 in1,972 mm13.6 cm tallervaries by version
Wheelbase302.2 cm9 ft 11 in3,022 mm62.2 cm longer wheelbasevaries by version
Ground clearance22.8 cm0 ft 9 in228 mm 
Boot (seats up)786 L 
Boot (seats folded)—no data
Weight—no data
Mercedes-Benz G-Class W4631990–2018 · Offroader
Length466.1 cm15 ft 4 in4,661 mm9.7 cm shortervaries by version
Width176 cm5 ft 9 in1,760 mm24.8 cm narrowervaries by version
Width incl. mirrors—no data
Height183.6 cm6 ft 0 in1,836 mm13.6 cm lowervaries by version
Wheelbase240 cm7 ft 10 in2,400 mm62.2 cm shorter wheelbasevaries by version
Ground clearance—no data
Boot (seats up)—no data
Boot (seats folded)—no data
Weight2,580 kg 

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.

Land Rover Defender (2019) vs Mercedes-Benz G-Class (1990): the differences

Will they fit? UK parking bay and garage

CarParking bay 4.8 × 2.4 mSingle garage, 7 ft door
Land Rover Defender (2019)Fits, but tightDoesn't fitcheck my garage
Mercedes-Benz G-Class (1990)Fits, but tightDoesn't fitcheck 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: Land Rover Defender (2019) · Mercedes-Benz G-Class (1990). Dimensions may vary by trim, market and model year.

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