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BMW 135i vs Mercedes-Benz SLK250

Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.

Vehicles

BMW logo

2013 BMW 135i

Mercedes-Benz logo

2015 Mercedes-Benz SLK250

Overview

SpecBMW 135i135iMercedes-Benz SLK250SLK 250
Selected trim135iSLK 250
Body styleCoupeConvertible
Drivetrainrear wheel driverear wheel drive
Fuel typepremium unleaded (required)premium unleaded (required)
Transmission6-speed manual6-speed manual
Engine typegasgas
Model year20132015

Pricing & market

SpecBMW 135i135iMercedes-Benz SLK250SLK 250
MSRP$39,600 (best)$43,950
For sale now00

Fuel economy & range

SpecBMW 135i135iMercedes-Benz SLK250SLK 250
Combined MPG23 MPG26 MPG (best)
City MPG20 MPG22 MPG (best)
Highway MPG28 MPG32 MPG (best)
Fuel tank14 gal18.5 gal (best)

Performance

SpecBMW 135i135iMercedes-Benz SLK250SLK 250
Horsepower300 hp (best)201 hp
Torque300 lb-ft (best)229 lb-ft
Engine size3 L (best)1.8 L
CylindersI6I4

Size & capability

SpecBMW 135i135iMercedes-Benz SLK250SLK 250
Seating4 seats (best)2 seats
Doors22
Cargo volume10 cu ft10.1 cu ft (best)
Curb weight3,373 lbs3,241 lbs (best)
Wheelbase104.7 in (best)95.7 in
Length172.2 in (best)162.8 in
Width68.8 in71.5 in (best)
Height56 in (best)51.2 in

Safety & recalls

SpecBMW 135i135iMercedes-Benz SLK250SLK 250
Open recalls (YMM scope)22

Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.

Trim overview

All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.

TrimBMW 135iMercedes-Benz SLK250
1

135i

$39,600 MSRP(Currently comparing)

SLK 250

$43,950 MSRP(Currently comparing)

2

135i

$44,400 MSRP

BMW 135i vs Mercedes-Benz SLK250 FAQ

Which is better: 2013 BMW 135i or 2015 Mercedes-Benz SLK250?
It depends on priorities. OpenDealer compares 2013 BMW 135i vs 2015 Mercedes-Benz SLK250 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
Which costs less: 2013 BMW 135i or 2015 Mercedes-Benz SLK250?
Based on starting MSRP, the 2013 BMW 135i starts lower at $39,600.
Which has better startingMsrp: 2013 BMW 135i or 2015 Mercedes-Benz SLK250?
The 2013 BMW 135i leads on startingMsrp in this comparison (39,600).
Which has better combinedMpg: 2013 BMW 135i or 2015 Mercedes-Benz SLK250?
The 2015 Mercedes-Benz SLK250 leads on combinedMpg in this comparison (26).
Which has better horsepower: 2013 BMW 135i or 2015 Mercedes-Benz SLK250?
The 2013 BMW 135i leads on horsepower in this comparison (300).
Which has better seats: 2013 BMW 135i or 2015 Mercedes-Benz SLK250?
The 2013 BMW 135i leads on seats in this comparison (4).