BMW M5 vs Mercedes-Benz S-Class (2026)
Price gap, MSRP + destination
$6,700
- M5: $6,700 cheaper, 215 hp more.
- S-Class: 9 mpg better, 18 mi more range.
- M5 wins 5 of 12 measures.
| Measure | M5 | S-Class | Winner |
|---|---|---|---|
| MSRP + destination | $124,750 | $131,450 | M5 |
| Horsepower | 717 hp | 502 hp | M5 |
| Torque | 553 lb-ft to 738 lb-ft | 553 lb-ft | N/A |
| MPG combined | 14 mpg | 23 mpg | S-Class |
| EV range | 29 mi | 47 mi | S-Class |
| Cargo, max | 16.5 cu ft | 12.8 cu ft | M5 |
| Cargo, seats up | 16.5 cu ft | 8.1 cu ft | M5 |
| Rear legroom | 37.0 in | 44.0 in | S-Class |
| Front legroom | 41.3 in | 41.4 in | About the same |
| Length | 195.3 in to 200.6 in | 208.3 in to 209.5 in | N/A |
| Width | 73.6 in to 77.6 in | 76.9 in | N/A |
| Curb weight | 4,370 lb to 5,390 lb | 5,465 lb | N/A |
| Seats | 5 | 5 | About the same |
| Ground clearance | 5.0 in | 5.1 in | About the same |
| 0-60 mph | 3.5 s tested | 4.3 s tested | M5 |
| Basic warranty | 4 yr / 50,000 mi | 4 yr / 50,000 mi | About the same |
Not scored: length, width, curb weight. N/A rows are not counted.
Nearest trims by price
| Trim | Nearest in price | Gap |
|---|---|---|
| M5 AWD $123,300 | S-Class S 500 4MATIC AWD $119,550 | $3,750 |
| S-Class S 580e 4MATIC AWD $130,400 | M5 Touring AWD $125,300 | $5,100 |
Cost to run
No total: a price or rating is missing.
12,000 miles a year. Gas $3.20. Electricity 17 cents per kWh. Plug-in share 50%.
| Cost | M5 | S-Class |
|---|---|---|
| MSRP + destination | $124,750 | $131,450 |
| Fuel or charging, 1 year | $2,106 | N/A |
| Fuel or charging, 6 years | $12,635 | N/A |
| Total, 6 years | $137,385 | N/A |
Which is better for me?
Weight each group from 0 to 10. MPG uses fuel or charging cost.
Equal weights: M5 wins.
No single weight change flips the winner.
| Group | Ahead | By |
|---|---|---|
| Price | M5 | 5% |
| MPG | N/A | |
| Power | M5 | 30% |
| Space | M5 | 22% |
| Towing | N/A |
Other years
What this cannot tell you
Your price and mpg will differ.
Reliability and safety are not included.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree