DecodedCars2026 Mercedes-Benz S-Class
Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2026 models.
- Class
- Large Cars
- Body styles
- S500 4matic 4dr Sedan Lwb, S580 4matic 4dr Sedan Lwb, S580e 4matic 4dr Sedan Lwb
- Engines
- 3.0L 6-cyl turbo, 4.0L 8-cyl turbo, 6.0L 12-cyl turbo
- Drivetrain
- All-Wheel Drive
- Fuel
- Hybrid, Premium Gasoline
- MPG (best)
- 23 combined · 20 city / 29 hwy
- Length
- 208.3 in
- Curb weight
- 4,740–5,501 lb
- NHTSA rating
- Not rated
- Recalls
- 0 campaigns
Pros & cons
What's good
- Hybrid version availableOffered as a hybrid as well as gas.
Watch out for
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
Calculated from EPA, NHTSA and vPIC data — not a review. How we calculate this →
Overview
The 2026 Mercedes-Benz S-Class is a large car offered with 3 engines (3.0L 6-cyl turbo, 4.0L 8-cyl turbo and 6.0L 12-cyl turbo), including a hybrid version and all-wheel drive.
It measures about 208 inches long and 77 inches wide on a 126-inch wheelbase, with a curb weight of roughly 4,740 lb (S500 4matic 4dr Sedan Lwb).
EPA rates its most efficient version at 23 MPG combined (20 city / 29 highway), 11% worse than the 2026 large car average of 25.9 MPG, for an estimated $3,550 a year in fuel.
There are no recalls or owner complaints on file with NHTSA for this model year.
What changed for 2026
- No plug-in hybrid version any more
Compared with 2025; trim, feature and price changes aren't covered. See the 2025 S-Class →
Dimensions & weight
| Body | Length | Width | Height | Wheelbase | Track F / R | Curb weight | Weight F/R |
|---|---|---|---|---|---|---|---|
| S500 4matic 4dr Sedan Lwb | 208.3 in | 76.8 in | 59.1 in | 126.4 in | 65 / 65 in | 4,740 lb | 47/53 |
| S580 4matic 4dr Sedan Lwb | 208.3 in | 76.8 in | 59.1 in | 126.4 in | 65 / 65 in | 4,784 lb | 47/53 |
| S580e 4matic 4dr Sedan Lwb | 208.3 in | 76.8 in | 59.1 in | 126.4 in | 65 / 65 in | 5,501 lb | 47/53 |
Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.
Will it fit your garage? Check with your measurements →Engines, MPG & running costs
| Version | Engine | Transmission | Drive | City / Hwy / Comb | vs. class | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|---|---|
| S500 4matic Hybrid | 3.0L 6-cyl turbo | Automatic 9-spd | All-Wheel Drive | 20 / 29 / 23 | -11% | $3,550 | 380 |
| S580 4matic Maybach Hybrid | 4.0L 8-cyl turbo | Automatic 9-spd | All-Wheel Drive | 16 / 27 / 20 | -23% | $4,100 | 451 |
| S580 4matic Hybrid | 4.0L 8-cyl turbo | Automatic 9-spd | All-Wheel Drive | 17 / 27 / 20 | -23% | $4,100 | 438 |
| Maybach S680 4matic | 6.0L 12-cyl turbo | Automatic 9-spd | All-Wheel Drive | 12 / 20 / 15 | -42% | $5,500 | 603 |
EPA estimates; "vs. class" is combined MPG against the 2026 EPA class average. How we calculate this →
Safety ratings & technology
NHTSA has not published 5-Star ratings for the 2026 Mercedes-Benz S-Class.
Similar 2026 large cars
| Model | Best MPG / range | NHTSA overall | Recalls |
|---|---|---|---|
| 2026 Mercedes-Benz S-Class (this car) | 23 MPG | Not rated | 0 |
| 2026 BMW i7 | 314 mi | Not rated | 0 |
Recalls (0)
No vehicle recalls on file with NHTSA for the 2026 Mercedes-Benz S-Class.
Check your VIN for open recalls at NHTSA ↗Not every 2026 Mercedes-Benz S-Class is affected — only a VIN check confirms your car.
Owner-reported problems
No owner complaints for the 2026 Mercedes-Benz S-Class in NHTSA's database since 2015.
Other S-Class years
Compare all years →| Year | MPG (best) | Length | Overall | Recalls | Complaints |
|---|---|---|---|---|---|
| 2027 S-Class | 23 | – | Not rated | 0 | 0 |
| 2025 S-Class | 24 | 208.3 in | Not rated | 0 | 0 |
| 2024 S-Class | 24 | 208.3 in | Not rated | 0 | 0 |
| 2023 S-Class | 23 | 209.4 in | Not rated | 0 | 0 |
| 2022 S-Class | 24 | 205.1 in | Not rated | 0 | 0 |
| 2021 S-Class | 24 | 205.1 in | Not rated | 0 | 0 |
| 2020 S-Class | 23 | 201.6 in | Not rated | 0 | 0 |
| 2019 S-Class | 23 | 201.6 in | Not rated | 0 | 0 |
| 2018 S-Class | 22 | 201.6 in | Not rated | 0 | 0 |
| 2017 S-Class | 26 | 201.6 in | Not rated | 0 | 0 |
| 2016 S-Class | 26 | 201.6 in | Not rated | 0 | 0 |
| 2015 S-Class | 26 | 201.6 in | Not rated | 0 | 0 |
Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Mercedes-Benz. How we calculate this →