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Cadillac CT4 vs Mercedes-Benz E-Class

2026 Cadillac CT4 vs 2026 Mercedes-Benz E-Class — two rivals compared on efficiency, size, safety and reliability.

Cadillac CT4

2026 Cadillac CT4

Compact CarsAWD/4WD
VS0 – 4Mercedes-Benz E-Class wins 4 of 4 categories
Mercedes-Benz E-Class

2026 Mercedes-Benz E-Class

Midsize CarsAWD/4WDHybrid/EV

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The short version

The Mercedes-Benz E-Class is more fuel-efficient: 28 vs 26 MPG combined in its best version.

That works out to about $200 a year less in fuel for the Mercedes-Benz E-Class (EPA estimate, 15,000 miles).

The Mercedes-Benz E-Class is the bigger car, about 8 inches longer.

Across all model years since 2005, the Mercedes-Benz E-Class has had fewer recall campaigns (0 vs 5).

The two cars

The 2026 Cadillac CT4 is a compact car offered with 3 engines (2.0L 4-cyl turbo, 2.7L 4-cyl turbo and 3.6L 6-cyl turbo) and rear-wheel drive and all-wheel drive. It measures about 187 inches long and 72 inches wide on a 109-inch wheelbase, with a curb weight of roughly 3,578 lb (2.0l 4dr Sedan AWD).

The 2026 Mercedes-Benz E-Class is a midsize car offered with 2 engines (2.0L 4-cyl turbo and 3.0L 6-cyl turbo), including a hybrid version and rear-wheel drive and all-wheel drive. It measures about 195 inches long and 75 inches wide on a 117-inch wheelbase, with a curb weight of roughly 5,269 lb (Amg 4dr Sedan).

Buying used? The 2024 CT4 and the 2024 E-Class have the fewest problems in our data; avoid the 2020 CT4.

Basics

Compact Cars
Class
Midsize Cars
Premium Gasoline
Fuel
Hybrid, Plug-in Hybrid
2.0L 4-cyl turbo, 2.7L 4-cyl turbo, 3.6L 6-cyl turbo
Engines
2.0L 4-cyl turbo, 3.0L 6-cyl turbo
Rear-Wheel Drive, All-Wheel Drive
Drivetrain
Rear-Wheel Drive, All-Wheel Drive

Efficiency

26 MPG
Best combined MPG
28 MPG
22 city
City / highway MPG (best)
25 city
$3,150
Fuel cost per year (EPA)
$2,950

Performance & space

187.4 in
Length
194.9 in
71.7 in
Width
74 in
55.9 in
Height
57.9 in
3,422 lb
Curb weight (lightest)
4,189 lb

Safety & reliability

12
Driver-assist features standard
–
0
Recalls (2026)
0
5
Recalls, all years since 2005
0
1
Owner complaints (latest year)
0

Interest

5,212
Wikipedia views, 30 days
28,957

Buying used

2024
Best used year
2024
2020
Year to avoid
–

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

Which one should you choose?

Choose the Cadillac CT4 if…

  • You want something easier to park (8 in shorter)

Choose the Mercedes-Benz E-Class if…

  • You want lower fuel bills (28 vs 26 MPG)
  • You want more room (8 in longer)
  • You want a hybrid or electric option
  • You put reliability history first (0 vs 5 recalls since 2005)

Pros & cons of each

2026 Cadillac CT4

  • AWD / 4WD available
  • 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.

2026 Mercedes-Benz E-Class

  • 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.

Full 2026 Cadillac CT4 specs →Full 2026 Mercedes-Benz E-Class specs →Compare fuel costs for your driving →Compare size & garage fit →