M550i xDrive

Overview

Body

Midsize CarsEPA, from EPA, last updated 6/11/2026

Drivetrain

All-Wheel DriveEPA, from EPA, last updated 6/11/2026

Transmission

Automatic (S8)EPA, from EPA, last updated 6/11/2026

Powertrain

GasEPA, from EPA, last updated 6/11/2026

Fuel

PremiumEPA, from EPA, last updated 6/11/2026

Engine & performance

HP

455

Power to weight

0.100 hp/lb

Axle ratio

2.81

Cyl

8EPA, from EPA, last updated 6/11/2026

Aspiration

TurbochargedEPA, from EPA, last updated 6/11/2026

Start-stop system

YesEPA, from EPA, last updated 6/11/2026

Efficiency

MPG Hwy

25 mpgEPA, from EPA, last updated 6/11/2026

MPG City

16 mpgEPA, from EPA, last updated 6/11/2026

MPG Comb

19 mpgEPA, from EPA, last updated 6/11/2026

Fuel $/yr

$4,050EPA, from EPA, last updated 6/11/2026

CO₂

454 g/miEPA, from EPA, last updated 6/11/2026

Eco Score

3/10EPA, from EPA, last updated 6/11/2026

Smog score

3/10

Elec. Range

0 miEPA, from EPA, last updated 6/11/2026

SmartWay certified

No

Dimensions & capacity

Length

195 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Width

74 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Height

58 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Wheelbase

117 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Curb Weight

4,537 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Pass. Vol

99 ft³EPA, from EPA, last updated 6/11/2026

Cargo Vol

14 ft³EPA, from EPA, last updated 6/11/2026

Safety NHTSA, model year

Recalls

1

Owner complaints

22

Feature availability

Which features come standard, cost extra, or are locked to a pricier trim arrives with the next data phase. Standard equipment shows here today.