2018 BMW 4-Series vs. Its Competition

2018 BMW 4-Series Convertible
Aaron Cole Aaron Cole Managing Editor

The 2018 BMW 4-Series is most often compared to the Mercedes-Benz C-Class.

Both rely on turbo-4 power in base configuration but offer higher-output options from there.

The C-Class is more elegantly styled, but we like the base turbo-4 in the BMW better.

Handling is comparable in both, with the C-Class a little more buttoned down in steering.

The Audi A5 is a competitor—especially in Sportback guise, which we think is the best four-door “coupe” shape on sale.

The Cadillac ATS is a compelling pick with a competent chassis, but its interior falls down to the BMW.

The Alfa is entertaining to drive, but it’s not yet available as a two-door.

The Lexus RC offers V-6 power and all-wheel drive, like the BMW, but its base turbo-4 is overmatched.

2018 BMW 4-Series Convertible2018 BMW 4-Series
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2018 Audi A5 Sportback2018 Audi A5
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2018 Cadillac ATS2018 Cadillac ATS
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2018 Lexus RC 350 F Sport2018 Lexus RC
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2018 Mercedes-Benz C-Class (C300 Coupe)2018 Mercedes-Benz C Class
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2018 Alfa Romeo Giulia2018 Alfa Romeo Giulia
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Quick Specs
6.8
The 2018 BMW 4-Series is an above-average coupe or convertible with sharp road manners and confident powertrains. The bad news? The 4-Series has personality like business casual.
7.5
The 2018 Audi A5 gets a hatchback body style that adds a measure of utility to go with its sleek and sporty luxury cachet.
6.8
The Cadillac ATS remains a highly desirable underdog with its terrific ride and handling and willing powertrains. It's as fun-to-drive as any compact luxury sedan.
6.2
The Lexus RC coupes step gradually from luxury liners to engaging sport coupes.
7.5
Very expensive and still not very large, the 2018 Mercedes-Benz C-Class nonetheless leads its luxury niche with fabulous style and fantastic power and grip.
7.4
The 2018 Alfa Romeo Giulia presents plenty of compelling reasons to jump ship from the “default” sports sedan brands.
MSRP From     
$43,300$42,800N/A$40,640$40,250$38,195
Gas Mileage     
20 MPG City / 34 MPG Hwy24 MPG City / 34 MPG Hwy18 MPG City / 32 MPG Hwy17 MPG City / 33 MPG Hwy17 MPG City / 33 MPG Hwy
Engine     
Intercooled Turbo Premium Unleaded I-4Intercooled Turbo Premium Unleaded I-4N/AIntercooled Turbo Premium Unleaded I-4Intercooled Turbo Premium Unleaded I-4Intercooled Turbo Premium Unleaded I-4
EPA Class     
Compact CarsSubcompact CarsN/ASubcompact CarsCompact CarsMid-Size Cars
Style Name     
430i Gran Coupe2.0 TFSI Premium ManualN/ARC 300 F Sport RWDC 300 SedanRWD
Drivetrain     
Rear Wheel DriveAll Wheel DriveN/ARear Wheel DriveRear Wheel DriveRear Wheel Drive
Passenger Capacity     
54N/A455
Passenger Doors     
N/AN/AN/AN/AN/AN/A
Body Style     
Hatchbackquattro CoupeN/ACoupeSedanSedan
Transmission     
Automatic w/ODManual w/ODN/AAutomatic w/ODAutomatic w/ODAutomatic w/OD
Detailed Spec Comparison
 2018 BMW 4-Series vs. 2018 Audi A52018 BMW 4-Series vs. 2018 Cadillac ATS2018 BMW 4-Series vs. 2018 Lexus RC2018 BMW 4-Series vs. 2018 Mercedes-Benz C Class2018 BMW 4-Series vs. 2018 Alfa Romeo Giulia