2015 BMW Z4 vs. Its Competition

2015 BMW Z4 Pure Fusion Design
Nelson Ireson Nelson Ireson Senior Editor

A decade ago, BMW moved to six-cylinder base engines to power its roadsters; now with better technology, it can accomplish the same–or more–power with turbocharged four-cylinders.

The Porsche Boxster is the sportiest competitor in the segment, and while you may deal with a little more interior noise, it's the best option for someone looking for occasional track use.

The Infiniti Q60 is comparatively bulky, but comes with a rear seat and a willing V-6 engine.

The Audi TT feels lean and sporty–and it costs less, too–but it comes standard with front-wheel drive and less power than the BMW.

There's also the Mercedes-Benz SLK 250, which feels bulkier than the Z4, but offers similarly frugal fuel economy numbers.

2015 BMW Z4 Pure Fusion Design2015 BMW Z4
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2018 Infiniti Q602018 INFINITI Q60
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2015 Audi TT Roadster2015 Audi TT
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2014 Mercedes-Benz SLK-Class (SLK250)2014 Mercedes-Benz SLK Class
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2014 Porsche Boxster2014 Porsche Boxster
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Quick Specs
The 2015 BMW Z4 is on the pricier side of the roadster segment, but it offers a nice blend of comfort, sport, and technology.
The 2018 Infiniti Q60 is a luxury coupe with a knockout one-two: devastating shape and savage performance in top trims.
The 2015 Audi TT is quick, fun, and stylish -- but it skips full sports-car credentials in favor of a little more practicality.
The 2014 Mercedes-Benz SLK is the most conservative choice amongst its competitors, but the mini-SL makes for a charming, compelling choice.
The 2014 Porsche Boxster defines the luxury sports roadster segment with its power, grace, and style.
MSRP From    
Gas Mileage    
17 MPG City / 34 MPG Hwy19 MPG City / 30 MPG Hwy22 MPG City / 31 MPG Hwy19 MPG City / 32 MPG Hwy20 MPG City / 30 MPG Hwy
Intercooled Turbo Premium Unleaded I-4Intercooled Turbo Premium Unleaded I-4Intercooled Turbo Premium Unleaded I-4Intercooled Turbo Premium Unleaded I-4Premium Unleaded H-6
EPA Class    
Two SeatersSubcompact CarsSubcompact CarsTwo SeatersTwo Seaters
Style Name    
2-Door Roadster sDrive28i2.0t PURE RWD2-Door Coupe S tronic quattro 2.0T2-Door Roadster SLK 2502-Door Roadster
Rear Wheel DriveRear Wheel DriveAll Wheel DriveRear Wheel DriveRear Wheel Drive
Passenger Capacity    
Passenger Doors    
Body Style    
RoadsterCoupequattro CoupeRoadsterConvertible
Manual w/ODAutomatic w/ODAuto-Shift Manual w/ODManual w/ODManual w/OD
Detailed Spec Comparison
 2015 BMW Z4 vs. 2018 INFINITI Q602015 BMW Z4 vs. 2015 Audi TT2015 BMW Z4 vs. 2014 Mercedes-Benz SLK Class2015 BMW Z4 vs. 2014 Porsche Boxster