2018 BMW M550i

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Rating7.7

Ranked #11 in 

Midsize Sedan
Write Review
$73,900
Starting Price 
Nathan Dyer's image
Nathan Dyer 

Senior Editor,

Updated on January 31, 2024

ProsConsWhat's New

Sporty appearance and comfortable cabin

Absence of Android Auto integration

New model in the 5-Series line-up

Intuitive touchscreen interface

Low-quality materials used here and there

Offers roomier backseats compared to rivals

Runs fast and handles-well

Specs & Features

$73,900

price

456 hp @ 5500 rpm

horsepower

480 lb.-ft. @ 1800 rpm

torque

8-Speed Shiftable Automatic

transmission

4.4L 8cyl AWD 8A

engine

-

basic warranty

Overview

Competing in the mid-size sedan segment, the 2018 BMW M550i is a direct competitor to the Alfa Romeo Giulia Quadrifoglio, the Maserati Ghibli, and the Audi S6. The M550i starts at an MSRP of $73,900, with a standalone trim in the lineup. It is offered with a 4.4L Twin-Turbocharged V8 engine and an 8-speed Automatic transmission, producing 456 horsepower and 480 lb-ft of torque. Through this powertrain, the M550i manages a 0-60 of 3.8 seconds and a combined fuel economy of 19 MPG. 

Buying Advice

naWe are loving the latest performance-oriented M550i. It comes with only an All-Wheel-Drive drivetrain. Meanwhile, its effortless power delivery and the well-equipped cabin have stolen our hearts. If you plan to buy it, you should also pay attention to the Driving Assistance Package worth $1,700, and the Cold Weather Package worth $800. 

Trims

    Base
    $73,900 onwards
    • Driver Lumbar support
    • Dual Zone Front Automatic Air Conditioning
    • Navigation system
    • Parking assist
    • Rain Sensing Windshield wipers

Compare to similar cars

Price

$73,900

Engine

Gasoline

Rating

7.68

Horsepower

456 hp @ 5500 rpm

Torque

480 lb.-ft. @ 1800 rpm

Capacity

5

Read Review

$113,900- $132,675

Gasoline

8.18

560 hp @ 5700 rpm

516 lb.-ft. @ 1750 rpm

4

Read Review

$71,900- $74,400

Gasoline

8.29

450 hp

406 lb.-ft. @ 1400 rpm

5

Read Review

$102,600

Gasoline

8.45

600 hp @ 6000 rpm

553 lb.-ft. @ 1800 rpm

5

Read Review

$86,295

Gasoline

6.85

640 hp @ 6400 rpm

630 lb.-ft. @ 3600 rpm

5

Read Review

$50,565- $54,005

Gasoline

8.63

311 hp @ 6400 rpm

280 lb.-ft. @ 4800 rpm

5

Read Review

$84,350

Gasoline

7.7

467 hp @ 7100 rpm

389 lb.-ft. @ 4800 rpm

5

Read Review

$73,050- $86,750

Gasoline

7.83

345 hp @ 5500 rpm

369 lb.-ft. @ 1750 rpm

5

Read Review

$52,950- $68,800

Gasoline

8.59

241 hp @ 5550 rpm

273 lb.-ft. @ 1300 rpm

5

Read Review

$71,600

Gasoline

8.14

396 hp @ 6100 rpm

384 lb.-ft. @ 2500 rpm

5

Read Review

2018 BMW M550i vs competitor's 0-60

    Car Name
    0-60 MPH
    Quarter Mile
    Top Speed
    SourceCompare
    3.8 sec--
    2018 BMW M5

    Ranked #1

    3 sec11.3 sec162 mph
    3.7 sec12.0 sec174 mph
    3.7 sec11.7 sec-
    3.89 sec--
    4.4 sec14.7 sec143 mph

    2018 BMW M550i vs competitor's MPG

      Car Name
      MPG City
      MPG Highway
      MPG Combined
      Fuel Tank Capacity
      Range (C/H)
      SourceCompare
      16 mpg25 mpg19 mpg18 gal.288/450 mi.
      22 mpg30 mpg25 mpg17.4 gal.382.8/522 mi.
      19 mpg26 mpg22 mpg17.4 gal.330.6/452.4 mi.
      18 mpg26 mpg21 mpg21.1 gal.379.8/548.6 mi.
      19 mpg25 mpg21 mpg21.1 gal.400.9/527.5 mi.
      16 mpg24 mpg19 mpg17.4 gal.278.4/417.6 mi.

      2018 BMW M550i vs competitor's dimensions

        Car Name
        Length
        Width
        Height
        Ground Clearance
        Wheelbase
        SourceCompare
        195.4 in.73.5 in.57.8 in.5.2 in.117.1 in.
        197.6 in.72.2 in.57.2 in.5 in.114.6 in.
        197.3 in.75.2 in.55.8 in.4 in.114.8 in.
        196.7 in.81.7 in.55.4 in.5 in.113.2 in.
        196.6 in.75.1 in.57.5 in.5 in.115.7 in.
        195.7 in.76.6 in.57.5 in.4.5 in.118 in.

        2018 BMW M550i vs competitor's trunk space

          Car Name
          Trunk Capacity
          Passenger Volume
          Max Trunk Volume
          SourceCompare
          47.2 cu.ft.98.8 cu.ft.89.7 cu.ft.
          11 cu.ft.104.3 cu.ft.11 cu.ft.
          2018 BMW M5

          Ranked #3

          14 cu.ft.98.8 cu.ft.73.3 cu.ft.
          2018 Audi S6

          Ranked #4

          14.1 cu.ft.63 cu.ft.57.5 cu.ft.
          24.5 cu.ft.-49.1 cu.ft.
          11 cu.ft.104.3 cu.ft.11 cu.ft.

          2018 BMW M550i vs competitor's cargo space

            Car Name
            Cargo Volume
            Cargo Volume w/ Seat Area
            Max Cargo Volume
            Bed Length
            SourceCompare
            89.7 cu.ft.47.2 cu.ft.89.7 cu.ft.-
            14 cu.ft.14 cu.ft.14 cu.ft.-
            16 cu.ft.13.1 cu.ft.16 cu.ft.-
            -13.1 cu.ft.--
            2018 BMW M5

            Ranked #5

            73.3 cu.ft.14 cu.ft.73.3 cu.ft.-
            14.3 cu.ft.14.3 cu.ft.14.3 cu.ft.-

            2018 BMW M550i vs competitor's towing capacity

              Car Name
              Payload Capacity
              Weight
              SourceCompare
              893 lbs.4372 lbs.
              1129 lbs.4141 lbs.
              865 lbs.4034 lbs.
              1070 lbs.4233 lbs.
              -4515 lbs.
              -4145 lbs.

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