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Size comparison · drawn to scale

Audi Q8 vs Porsche Cayenne (9Y0): size comparison

  • Length Q8 68 mm3 in longer
  • Width Q8 12 mm0.5 in wider
  • Height About the same height
  • Boot Cayenne (9Y0) 165 L5.8 cu ft more

Car 1 blue, solid outline

Q8 Audi · 2018–present · SUV Q8 4,986 × 1,995 × 1,705 mm16 ft 4 in × 6 ft 7 in × 5 ft 7 in Change

Car 2 coral, dashed outline

Cayenne (9Y0) Porsche · 2018–present · SUV Cayenne (9Y0) 4,918 × 1,983 × 1,696 mm16 ft 2 in × 6 ft 6 in × 5 ft 7 in Change
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  • Car 1, blue, solid outline: Q8
  • Car 2, coral, dashed outline: Cayenne (9Y0)
0 m1 m2 m3 m4 m5 m6 m1 m0 ft1 ft2 ft3 ft4 ft5 ft6 ft7 ft8 ft9 ft10 ft11 ft12 ft13 ft14 ft15 ft16 ft17 ft18 ft19 ft20 ft21 ft1 ft2 ft3 ft4 ft5 ftWheelbase 2,995 mmWheelbase 9 ft 10 inLength 4,986 mmLength 16 ft 4 in1,705 mm5 ft 7 inWheelbase 2,895 mmWheelbase 9 ft 6 inLength 4,918 mmLength 16 ft 2 in1,696 mm5 ft 7 in

Scale about 1:22 on a desktop screen · grid 500 mm1 ft · in Overlay both cars start at the front bumper Side view: dashed lines mark the axles

Dimensions and difference

The Q8 is 68 mm3 in longer, 12 mm0.5 in wider and 9 mm0.4 in taller than the Cayenne (9Y0). Its wheelbase is 100 mm4 in longer.

DimensionQ8Cayenne (9Y0)Difference, car 1 vs car 2
Length4,986 mm16 ft 4 in16 ft 4 in4,986 mm4,918 mm16 ft 2 in16 ft 2 in4,918 mm +68 mm+3 in +1.4%
Width1,995 mm6 ft 7 in6 ft 7 in1,995 mm1,983 mm6 ft 6 in6 ft 6 in1,983 mm +12 mm+0.5 in +0.6%
Height1,705 mm5 ft 7 in5 ft 7 in1,705 mm1,696 mm5 ft 7 in5 ft 7 in1,696 mm +9 mm+0.4 in +0.5%
Wheelbase2,995 mm9 ft 10 in9 ft 10 in2,995 mm2,895 mm9 ft 6 in9 ft 6 in2,895 mm +100 mm+4 in +3.5%
Footprint9.95 m²107.1 sq ft107.1 sq ft9.95 m²9.75 m²105.0 sq ft105.0 sq ft9.75 m² +0.19 m²+2.1 sq ft +2.0%
Boot605 L21.4 cu ft21.4 cu ft605 L770 L27.2 cu ft27.2 cu ft770 L −165 L−5.8 cu ft −21.4%
Kerb weight2,145 kg4,729 lb4,729 lb2,145 kg2,060–2,370 kg4,542–5,225 lb4,542–5,225 lb2,060–2,370 kg +85 kg+187 lb +4.1%

Width without mirrors. Figures come from the catalog version pages; the drawing uses the same numbers. Body outlines are generic for the body type - proportions are exact, styling is not. Weight difference compares the lightest versions.

Garage and parking

A typical single garage is about 5.5 × 3.0 m18 ft 1 in × 9 ft 10 in inside; a parking bay about 5.0 × 2.5 m16 ft 5 in × 8 ft 2 in. Room to open a door: about 600 mm2 ft each side.

Q8

Single garage
Tight 514 mm1 ft 8 in to spare in length, 503 mm1 ft 8 in each side
Parking bay
Tight 14 mm0.6 in to spare in length, 253 mm10 in each side

Cayenne (9Y0)

Single garage
Tight 582 mm1 ft 11 in to spare in length, 509 mm1 ft 8 in each side
Parking bay
Tight 82 mm3 in to spare in length, 259 mm10 in each side

Check your own garage with these cars

Frequently asked questions

Which is bigger, the Audi Q8 or the Porsche Cayenne (9Y0)?

The Audi Q8 is the bigger car by footprint (length × width). The Q8 is 68 mm longer, 12 mm wider and 9 mm taller than the Cayenne (9Y0). Its wheelbase is 100 mm longer.

Will the Audi Q8 and the Porsche Cayenne (9Y0) fit in a standard garage?

In a typical single garage of 5.5 × 3.0 m inside: The Audi Q8 fits, but it is tight to get out (514 mm to spare in length, 503 mm each side). The Porsche Cayenne (9Y0) fits, but it is tight to get out (582 mm to spare in length, 509 mm each side). Widths are without mirrors; check your own garage with our garage checker.

Which has the bigger boot?

The Porsche Cayenne (9Y0): 770 L against 605 L in the Audi Q8 (seats up, as quoted by the maker).

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