2015 Mercedes-Benz SLK-Class

header-image
$43,950 - $57,650
Starting Price 
Nathan Dyer's image
Nathan Dyer 

Senior Editor,

Updated on November 3, 2023

ProsConsWhat's New

A wide array of features as standard

Rear seat legroom is limited

Revised trim and options list

Smooth operating glass roof panel

Rivals are much quicker than the base engine

New painted roof panel

Powerful and efficient V6 engine

Elegant and upscale interiors

Specs & Features

$57,650

price

302 hp @ 6500 rpm

horsepower

273 lb.-ft. @ 3500 rpm

torque

7-Speed Shiftable Automatic

transmission

3.5L 6cyl RWD 7A

engine

-

basic warranty

Overview

The 2015 Mercedes-Benz SLK-Class Convertible is a compact convertible offered in 2 trims, starting off at a base MSRP of $43,950. For that price, it mainly competes with the Audi TT Roadster, the BMW Z4 Convertible, and the Porsche Boxster Convertible which has the lowest torque output from the base engine among the bunch. Between 2 trims, the Mercedes-Benz SLK-Class offers 2 powertrains. The base engine is a 1.8L turbocharged Inline-4 capable of making 201 horsepower and 229 lb-ft of torque. If more power is required, there is also a 302 horsepower-making 3.5L V6 engine. The first engine is mated to a 6-speed manual transmission while the V6 engine is connected to a 7-speed automatic transmission as standard and this transmission is optional on the Inline 4 engine. The SLK-Class reaches 60 mph from zero in 6.8 seconds on its base engine, which gets pumped up to 5.6 seconds with the 3.5L V6. Depending on the powertrain, the SLK-Class can manage a combined fuel economy between 24 and 26 mpg. While we're on the topic of choices, the 17 striking colors the SLK-Class comes in really pull you towards itself.

Buying Advice

We recommend skipping the base trim due to its underpowered engine. Upgrade to the SLK 350 trim, which adds all the features of the Premium 1 package, and add the Lightning package, which adds features such as adaptive bi-xenon headlights.

Trims

    350
    $57,650 onwards
    • Engine: 3.5L 6cyl RWD 7A
    • Horsepower: 302 hp @ 6500 rpm hp
    • Torque: 273 lb.-ft. @ 3500 rpm
    • 0-60 mph: 5.5 sec
    • Top Speed: 133 mph
    • Fuel Economy Combined: 24 mpg
    SLK 250
    $43,950 onwards
    • Engine: 1.8L 4cyl RWD 6M
    • Horsepower: 201 hp @ 5500 rpm hp
    • Torque: 229 lb.-ft. @ 2000 rpm
    • 0-60 mph: 7.7 sec
    • Top Speed: 170 mph
    • Fuel Economy Combined: 26 mpg

Compare to similar cars

Price

$43,950- $57,650

Engine

Gasoline

Rating

7.47

Horsepower

302 hp @ 6500 rpm

Torque

273 lb.-ft. @ 3500 rpm

Capacity

2

Read Review

$48,950- $65,800

Gasoline

7.44

240 hp @ 5000 rpm

260 lb.-ft. @ 1450 rpm

2

Read Review

$84,000- $106,700

Gasoline

7.65

329 hp @ 5250 rpm

354 lb.-ft. @ 1600 rpm

2

Read Review

$70,850

Gasoline

7.79

415 hp @ 6800 rpm

398 lb.-ft. @ 4500 rpm

2

Read Review

$51,400- $73,500

Gasoline

8.18

265 hp @ 6700 rpm

206 lb.-ft. @ 4500 rpm

2

Read Review

2015 Mercedes-Benz SLK-Class vs competitor's 0-60

    Car Name
    0-60 MPH
    Quarter Mile
    Top Speed
    SourceCompare
    7.7 sec14.7 sec170 mph
    4.4 sec--
    4.6 sec13.1 sec190 mph
    2015 BMW Z4

    Ranked #3

    5.4 sec14.0 sec130 mph
    7.8 sec12 sec173 mph

    2015 Mercedes-Benz SLK-Class vs competitor's MPG

      Car Name
      MPG City
      MPG Highway
      MPG Combined
      Fuel Tank Capacity
      Range (C/H)
      SourceCompare
      22 mpg32 mpg26 mpg18.5 gal.407/592 mi.
      2015 BMW Z4

      Ranked #1

      22 mpg34 mpg26 mpg14.5 gal.319/493 mi.
      22 mpg30 mpg24 mpg16.9 gal.338/507 mi.
      20 mpg27 mpg23 mpg19.8 gal.396/534.6 mi.
      19 mpg28 mpg22 mpg18.5 gal.351.5/518 mi.

      2015 Mercedes-Benz SLK-Class vs competitor's dimensions

        Car Name
        Length
        Width
        Height
        Ground Clearance
        Wheelbase
        SourceCompare
        162.8 in.71.5 in.51.2 in.4 in.95.7 in.
        181.6 in.73.9 in.51.8 in.3.8 in.101.8 in.
        172.2 in.70.9 in.50.5 in.4.3 in.97.4 in.
        2015 BMW Z4

        Ranked #3

        166.9 in.70.5 in.50.8 in.5 in.98.3 in.
        163.2 in.71.5 in.51.2 in.4 in.95.7 in.

        2015 Mini Cooper

        Ranked #6

        146.6 in.66.3 in.55.7 in.5.5 in.97.1 in.

        2015 Mercedes-Benz SLK-Class vs competitor's trunk space

          Car Name
          Trunk Capacity
          Passenger Volume
          Max Trunk Volume
          SourceCompare
          10.1 cu.ft.48.8 cu.ft.10.1 cu.ft.
          2015 BMW Z4

          Ranked #1

          8 cu.ft.164.4 cu.ft.8 cu.ft.
          13.5 cu.ft.-13.5 cu.ft.
          4.6 cu.ft.115.8 cu.ft.4.6 cu.ft.
          10.1 cu.ft.48.8 cu.ft.10.1 cu.ft.

          2015 Mercedes-Benz SLK-Class vs competitor's cargo space

            Car Name
            Cargo Volume
            Cargo Volume w/ Seat Area
            Max Cargo Volume
            SourceCompare
            121.4 cu.ft.10.1 cu.ft.10.1 cu.ft.
            65.6 cu.ft.4.6 cu.ft.4.6 cu.ft.
            10.1 cu.ft.10.1 cu.ft.10.1 cu.ft.
            2015 BMW Z4

            Ranked #4

            150 cu.ft.8 cu.ft.8 cu.ft.
            71.5 cu.ft.13.5 cu.ft.13.5 cu.ft.

            2015 Mercedes-Benz SLK-Class vs competitor's towing capacity

              Car Name
              Payload Capacity
              Weight
              SourceCompare
              705 lbs.3241 lbs.
              540 lbs.3836 lbs.
              628 lbs.3583 lbs.
              739 lbs.2888 lbs.
              2015 BMW Z4

              Ranked #1

              562 lbs.3263 lbs.

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