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Mercedes-Benz EQB vs Porsche Cayenne

2025 Mercedes-Benz EQB vs 2025 Porsche Cayenne — two rivals compared on efficiency, size, safety and reliability.

Mercedes-Benz EQB

2025 Mercedes-Benz EQB

Small Sport Utility Vehicle 2WDAWD/4WDHybrid/EV
VS4 – 0Mercedes-Benz EQB wins 4 of 4 categories
Porsche Cayenne

2025 Porsche Cayenne

Standard Sport Utility Vehicle 4WDAWD/4WDHybrid/EV

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The short version

That works out to about $3,050 a year less in fuel for the Mercedes-Benz EQB (EPA estimate, 15,000 miles).

The Porsche Cayenne is the bigger car, about 9 inches longer.

Across all model years since 2005, the Mercedes-Benz EQB has had fewer recall campaigns (6 vs 28).

The two cars

The 2025 Mercedes-Benz EQB is a small SUV powered by electricity and front-wheel drive and all-wheel drive. It measures about 184 inches long and 72 inches wide on a 111-inch wheelbase, with a curb weight of roughly 4,497 lb (Class 250 4dr SUV).

The 2025 Porsche Cayenne is a standard SUV offered with 2 engines (3.0L 6-cyl turbo and 4.0L 8-cyl turbo), including a hybrid version 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 2024 EQB and the 2018 Cayenne have the fewest problems in our data; avoid the 2022 EQB and the 2019 Cayenne.

Basics

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

Efficiency

–
Best combined MPG
22 MPG
–
City / highway MPG (best)
21 city
251 mi
EV range
–
$700
Fuel cost per year (EPA)
$3,750

Performance & space

–
Horsepower (most powerful)
729 hp
–
Seats (most)
5
184.3 in
Length
193.7 in
72 in
Width
78 in
65.7 in
Height
66.1 in
4,497 lb
Curb weight (lightest)
4,376 lb

Safety & reliability

–
Driver-assist features standard
11
1
Recalls (2025)
2
6
Recalls, all years since 2005
28
2
Owner complaints (latest year)
6

Interest

1,973
Wikipedia views, 30 days
30,338

Buying used

2024
Best used year
2018
2022
Year to avoid
2019

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

Which one should you choose?

Choose the Mercedes-Benz EQB if…

  • You want an EV with more range (251 miles)
  • You want something easier to park (9 in shorter)
  • You put reliability history first (6 vs 28 recalls since 2005)

Choose the Porsche Cayenne if…

  • You want more room (9 in longer)

Pros & cons of each

2025 Mercedes-Benz EQB

  • AWD / 4WD available
  • "Park outside" recallCheck that the recall repair was done before buying or driving.

2025 Porsche Cayenne

  • Strong performanceUp to 729 hp, versus about 456 hp for similar 2025 models.
  • Plug-in hybrid version availableOffered as a plug-in hybrid as well as gas.
  • 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 2025 Mercedes-Benz EQB specs →Full 2025 Porsche Cayenne specs →Compare fuel costs for your driving →Compare size & garage fit →