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BMW X5 vs Porsche Cayenne

2026 BMW X5 vs 2026 Porsche Cayenne — two standard SUVs compared on efficiency, size, safety and reliability.

BMW X5

2026 BMW X5

Standard Sport Utility Vehicle 2WDAWD/4WDHybrid/EV
VS3 – 4Porsche Cayenne wins 4 of 7 categories
Porsche Cayenne

2026 Porsche Cayenne

Standard Sport Utility Vehicle 4WDAWD/4WD

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The short version

The BMW X5 is more fuel-efficient: 25 vs 19 MPG combined in its best version.

That works out to about $1,050 a year less in fuel for the BMW X5 (EPA estimate, 15,000 miles).

Across all model years since 2005, the Porsche Cayenne has had fewer recall campaigns (28 vs 85).

The two cars

The 2026 BMW X5 is a standard SUV offered with 2 engines (3.0L 6-cyl turbo and 4.4L 8-cyl turbo), including a hybrid version and rear-wheel drive and all-wheel drive. It measures about 194 inches long and 79 inches wide on a 117-inch wheelbase, with a curb weight of roughly 5,558 lb (M60i 4dr SUV).

The 2026 Porsche Cayenne is a standard SUV offered with 2 engines (3.0L 6-cyl turbo and 4.0L 8-cyl turbo) and all-wheel drive. It measures about 194 inches long and 78 inches wide on a 114-inch wheelbase, with a curb weight of roughly 4,376 lb (Base / S 4dr SUV).

Buying used? The 2023 X5 and the 2018 Cayenne have the fewest problems in our data; avoid the 2019 X5 and the 2019 Cayenne.

Basics

Standard Sport Utility Vehicle 2WD
Class
Standard Sport Utility Vehicle 4WD
Hybrid, Plug-in Hybrid
Fuel
Premium Gasoline
3.0L 6-cyl turbo, 4.4L 8-cyl turbo
Engines
3.0L 6-cyl turbo, 4.0L 8-cyl turbo
Rear-Wheel Drive, All-Wheel Drive
Drivetrain
All-Wheel Drive

Efficiency

25 MPG
Best combined MPG
19 MPG
23 city
City / highway MPG (best)
17 city
$3,300
Fuel cost per year (EPA)
$4,350

Performance & space

523 hp
Horsepower (most powerful)
493 hp
–
Seats (most)
4
192.1 in
Length
193.7 in
78 in
Width
78 in
68.9 in
Height
65.7 in
5,181 lb
Curb weight (lightest)
4,376 lb

Safety & reliability

9
Driver-assist features standard
11
2
Recalls (2026)
1
85
Recalls, all years since 2005
28
28
Owner complaints (latest year)
5

Interest

25,895
Wikipedia views, 30 days
30,338

Buying used

2023
Best used year
2018
2019
Year to avoid
2019

Green = clearly better. Prices are not included. How we calculate this →

Which one should you choose?

Choose the BMW X5 if…

  • You want lower fuel bills (25 vs 19 MPG)
  • You want a hybrid or electric option

Choose the Porsche Cayenne if…

  • You want more standard driver-assist tech
  • You put reliability history first (28 vs 85 recalls since 2005)

Pros & cons of each

2026 BMW X5

  • Excellent fuel economyUp to 25 MPG combined — 15% better than the average 2026 standard SUV (21.7 MPG).
  • Hybrid version availableOffered as a hybrid and plug-in hybrid as well as gas.
  • AWD / 4WD available
  • Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.

2026 Porsche Cayenne

  • Lots of standard safety tech4 of 5 key driver aids standard on the versions we checked.
  • Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.

Full 2026 BMW X5 specs →Full 2026 Porsche Cayenne specs →Compare fuel costs for your driving →Compare size & garage fit →