Mercedes-Benz SLK Mercedes-Benz SLK 2015 BMW 3-Series BMW 3-Series 2018

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Mercedes-Benz SLK vs. BMW 3-Series Price Comparison (MSRP)

The sticker prices, before adjusting for remaining feature differences. Usually these are the numbers you will see on the window stickers.

Models in short supply often sell at or even above these prices.

Mercedes-Benz SLK vs. BMW 3-Series Invoice Comparison

Lowest Total Price: $74,045

BMW 3-Series M3   
Difference: $3,210

Lowest Total Invoice: $69,535

BMW 3-Series M3   
Difference: $2,378

Calculate Payments

  Down Payment Interest Rate Term
Model Year20152018
ModelSLK3-Series
TrimSLK55 AMGM3
Body2dr Hardtop conv.4dr Sedan
Base Price $70,900 $65,500
Base Invoice $65,937 $61,595
Multimedia Package 2,330  
Automatic climate control, front 760  
Obstacle detection, rear 970  
Metallic paint (extra cost) 720 550
Proximity key 650  
Executive Package   4,100
7-speed automated manual   2,900
Sunroof   0
Wood trim   0
Leather seating surfaces   0
Multimedia Package 2,167  
Automatic climate control, front 707  
Obstacle detection, rear 902  
Metallic paint (extra cost) 670 505
Proximity key 605  
Executive Package   3,770
7-speed automated manual   2,670
Sunroof   0
Wood trim   0
Leather seating surfaces   0
Options (change) 5,430 7,550
Options (change) 5,051 6,945
Destination 925 995
Total Price $77,255 $74,045
Total Invoice $71,913 $69,535

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While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

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Request free, no-obligation Mercedes-Benz SLK dealer quotes or BMW 3-Series dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Mercedes-Benz SLK vs. BMW 3-Series

Lowest Adjusted Price: BMW 3-Series M3
Lowest Adjusted Invoice: Mercedes-Benz SLK SLK55 AMG
TrueDelta Adjusted Price Difference: $465
TrueDelta Adjusted Invoice Difference: $177
Model Year20152018
ModelSLK3-Series
TrimSLK55 AMGM3
Body2dr Hardtop conv.4dr Sedan
Engine415hp V8425hp I6
TransmissionT7S7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)19/28 MPG17/24 MPG
Audio (watts, speakers)500, 11600, 16
Tire (rear if not all the same)235/40-18255/40-18
Total Price$77,255$74,045
Adjustments for Features-2,7450
Feature-Adjusted Total Price$74,510$74,045
Total Invoice$71,913$69,535
Adjustments for Features-2,5550
Feature-Adjusted Total Invoice$69,358$69,535

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Features Comparison: Mercedes-Benz SLK vs. BMW 3-Series

Model Year20152018
ModelSLK3-Series
TrimSLK55 AMGM3
Body2dr Hardtop conv.4dr Sedan
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200 
7-speed automated manual $1200
RWD$0$0
Accessories 
Hands-free trunk or liftgate $100
Heated steering wheel $100
Parking guidance system - passive$250 
Power rear side windows $200
Semi-automated parking system $500
Tilt/telescoping steering wheel, manual $250
Tilt/telescoping steering wheel, power$350 
Brakes, Airbags, and Other Safety 
Around view cameras $500
Driver drowsiness monitor$150 
Roll bar$200 
Temporary spare tire$150 
Torque vectoring, brake-based$100 
Wide-view front camera $150
Cargo Management 
Air-conditioned storage compartment $50
Climate Control 
Automatic air recirculation $100
Rear air vents with manual controls $150
Drivetrain 
Active rear differential $500
Engine / Motor 
Dual-mode exhaust, switchable$500 
Regenerative braking $0
Exterior 
Black exterior trim (optional) $0
Body kit$0 
Glass roof panel(s)$300 
Painted brake calipers (optional) $0
Power retractable hardtop$6750 
Sport rocker panels (optional) $0
Sunroof $900
Infotainment 
4G LTE connectivity $0
Handwriting recognition $200
S Voice support $0
Satellite radio$200 
Satellite radio - one year subscription $250
SD Card slot$25 
Siri Eyes Free support $0
SMS text-to-speech reader$25 
Telematics service, such as OnStar $200
Telematics service, such as OnStar, with navigation$225 
Voice control for external devices $0
Instruments, Lights, and Mirrors 
Analog clock$25 
Fog light, rear$100 
Head-up display (HUD) $350
Illuminated visor mirror, driver $50
Illuminated visor mirror, passenger $50
LED headlights $1000
Visor mirror, driver$10 
Visor mirror, passenger$10 
Xenon HID headlights$500 
Seats and Interior Trim 
Aluminum trim$100 
Center armrest(s), second row $50
Folding second row seats $300
Heated second row seats $200
Leather door panel trim$250 
Manual thigh support length adjuster, driver seat $50
Manual thigh support length adjuster, passenger seat $50
Memory system, passenger seat$150 
Metal pedals$75 
Neck-level heating, front seats$150 
No leather in second row$-300 
Power seatback bolsters, driver seat $100
Power seatback bolsters, passenger seat $100
Synthetic suede inserts in leather seating surfaces$0 
Wood trim $300
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500
Electronic systems calibration selector $200
Performance steering system (optional) $0
Transmission 
Launch control $100
Total Value of Features$11,495$8,750
Value of Feature Adjustments$2,745$0
Value of Feature Adjustments-2,5550

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Specifications Comparison: Mercedes-Benz SLK vs. BMW 3-Series

Model Year20152018
ModelSLK3-Series
Body2dr Hardtop conv.4dr Sedan
Wheelbase95.7 in110.6 in
Length162.8 in182.5 in
Width71.5 in71.3 in
Height51.2 in56.3 in
Curb Weight3,583 lb.3,630 lb.
Fuel Capacity15.9 gal.15.8 gal.
Row 1 Headroom38.0 in40.3 in
Row 1 Shoulder Room52.2 in55.1 in
Row 1 Legroom42.5 in42.0 in
Row 2 Headroom0.0 in37.7 in
Row 2 Shoulder Room0.0 in55.1 in
Row 2 Legroom0.0 in35.1 in
Cargo Volume,
Minimum
6.4 ft313.0 ft3
Cargo Volume,
Maximum
10.1 ft313.0 ft3

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Option Package Details
Mercedes-Benz SLK SLK55 AMG

Multimedia Package
FeatureValueRequested?
DVD-compatible player0Yes
Media drive15Yes
Traffic + travel information25Yes
SD Card slot25No
In-vehicle Internet150Yes
App support0Yes
Navigation map updates, three years0Yes
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested89097%
Total Not Requested253%

Option Package Details
BMW 3-Series M3

7-speed automated manual
FeatureValueRequested?
7-speed automated manual0Yes
Steering-wheel-mounted transmission controls100Yes
Launch control100No
Total Requested10050%
Total Not Requested10050%
Leather seating surfaces
FeatureValueRequested?
Leather seating surfaces450Yes
Upgraded leather upholstery-450No
Total Requested45050%
Total Not Requested-45050%
Executive Package
FeatureValueRequested?
Heated second row seats200No
Obstacle detection, front150Yes
Obstacle detection, rear250Yes
Heated steering wheel100No
Head-up display (HUD)350No
Headlight washers50Yes
Steering-linked headlights150Yes
Auto-dimming headlights200Yes
Semi-automated parking system500No
Around view cameras300No
Wide-view front camera150No
Total Requested80033%
Total Not Requested160067%

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