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Mercedes-Benz S 450 4MATIC
Sedan · Gasoline · AWD
vs
BMW M550i xDrive
Sedan · Gasoline · AWD
Mercedes-Benz S 450 4MATIC
Car A
Mercedes-Benz S 450 4MATIC
The Mercedes-Benz S 450 4MATIC pairs strong AWD performance with room for five, making it well-suited to road trips and winter use. It offers good value in its segment given its 362 hp, 5.4 s 0–100 km/h, and a usable 525 L trunk.
5 seatsSedanGasoline5-star safety9.2 L/100kmAWD
BMW M550i xDrive
Car B
BMW M550i xDrive
A premium AWD saloon that pairs very quick acceleration with real everyday space, the M550i xDrive shines on fast, long-distance journeys. Higher fuel use and premium pricing make it less compelling for city-heavy or budget-led use.
5 seatsSedanGasoline5-star safety530 hpAWD
Why compared more powercomparison picksame body typesame powertrainsame ranking profilesame seats

Usage fit

Family 55 / 62
City 31 / 26
Budget / value 32 / 36
Road trip 69 / 68
Performance 43 / 47
Cargo 29 / 29
Practical 30 / 39
Premium 61 / 69
Winter 70 / 70

Scores out of 100. Blue = Mercedes-Benz S 450 4MATIC · Orange = BMW M550i xDrive

Specs side-by-side

Spec Mercedes-Benz S 450 4MATIC BMW M550i xDrive
Values are representative — confirm for your market and trim.

Pros & cons

Mercedes-Benz S 450 4MATIC

  • AWD traction boosts confidence for winter driving and long-distance trips.
  • Strong performance (362 hp, 500 Nm, 0–100 km/h in 5.4 s) for easy passing and highway cruising.
  • Seats five with a 525 L trunk, fitting family travel and weekend luggage.
  • High safety ranking in the signals adds peace of mind.

BMW M550i xDrive

  • Very strong performance for its class (530 hp, 0–100 km/h in 3.8 s).
  • AWD traction supports winter and mixed-weather driving.
  • Five seats and a 530 L boot suit growing families and road trips.
  • Well suited to premium buyers who prioritize fast, long-distance travel.

Verdict

Pick Mercedes-Benz S 450 4MATIC if…
Best fuel economy
Mercedes-Benz S 450 4MATIC uses 9.2 L/100km vs 10.5 — a meaningful saving if you cover high mileage.
Pick BMW M550i xDrive if…
More power
BMW M550i xDrive puts out 530 hp vs 362 — meaningfully quicker and more confident on motorways.

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