BMW 3-Series BMW 3-Series 2020 Mercedes-Benz SLK Mercedes-Benz SLK 2012
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BMW 3-Series vs. Mercedes-Benz SLK 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.

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

Lowest Total Price: $62,145

BMW 3-Series M340i   
Difference: $12,570

Calculate Payments

  Down Payment Interest Rate Term
Model Year20202012
Model3-SeriesSLK
TrimM340iSLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $54,000 $67,500
Luxury Design 0  
Executive Tier 3,100  
Obstacle detection, rear 600 970
Premium Tier 2,900  
Metallic paint (extra cost) 550 720
Aluminum trim 0  
Lighting Package   1,090
Multimedia Package   2,150
Automatic climate control, front   760
Proximity key   650
Luxury Design 0  
Executive Tier 2,850  
Obstacle detection, rear 550 902
Premium Tier 2,670  
Metallic paint (extra cost) 505 670
Aluminum trim 0  
Lighting Package   1,014
Multimedia Package   2,000
Automatic climate control, front   707
Proximity key   605
Options (change) 7,150 6,340
Options (change) 6,575 5,898
Destination 995 875
Total Price $62,145 $74,715

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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 BMW 3-Series dealer quotes or Mercedes-Benz SLK dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

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

Lowest Adjusted Price and Invoice: BMW 3-Series M340i
TrueDelta Adjusted Price Difference: $9,000
TrueDelta Adjusted Invoice Difference: $58,655
Model Year20202012
Model3-SeriesSLK
TrimM340iSLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine382hp I6415hp V8
TransmissionT8T7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)22/30 MPG19/28 MPG
Audio (watts, speakers)600, 16500, 11
Tire (rear if not all the same)225/45-18235/40-18
Total Price$62,145$74,715
Adjustments for Features0-3,570
Feature-Adjusted Total Price$62,145$71,145

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

Model Year20202012
Model3-SeriesSLK
TrimM340iSLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300 
7-speed manually-shiftable automatic $1200
RWD$0$0
Accessories 
Hands-free trunk or liftgate$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
Tires, run-flat$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 
Engine / Motor 
Dual-mode exhaust, switchable $500
Regenerative braking$0 
Exterior 
Body kit $0
Power retractable hardtop $6750
Rear spoiler $200
Sunroof$900 
Infotainment 
4G LTE connectivity$0 
App support$0 
CD changer, in-dash $325
CD player$125 
Handwriting recognition$200 
In-vehicle Internet$150 
Navigation map updates, three years$0 
S Voice support$0 
Satellite radio $200
Satellite radio - one year subscription$250 
SD Card slot $25
Siri Eyes Free support$0 
Voice control for external devices$0 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming headlights$200 
Fog light, rear $100
Fog lights$125 
Head-up display (HUD)$350 
Headlight washers $50
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Large color reconfigurable instrument cluster display$250 
LED headlights$1000 
Visor mirror, driver $10
Visor mirror, passenger $10
Xenon HID headlights $500
Seats and Interior Trim 
Center armrest(s), second row$50 
Folding second row seats$300 
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
Suspension, Wheels, and Tires 
Electronic systems calibration selector$200 
Sport suspension (upgrade) $0
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$7,950$11,520
Value of Feature Adjustments$0$3,570
Value of Feature Adjustments0-3,323

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See a complete comparison of BMW 3-Series vs. Mercedes-Benz SLK features.

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

Model Year20202012
Model3-SeriesSLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase112.2 in95.7 in
Length185.7 in162.8 in
Width71.9 in71.5 in
Height56.8 in51.2 in
Curb Weight3,849 lb.3,583 lb.
Fuel Capacity15.6 gal.15.9 gal.
Row 1 Headroom38.7 in38.0 in
Row 1 Shoulder Room56.0 in52.2 in
Row 1 Legroom42.0 in42.5 in
Row 2 Headroom37.6 in0.0 in
Row 2 Shoulder Room54.6 in0.0 in
Row 2 Legroom35.2 in0.0 in
Cargo Volume,
Minimum		16.9 ft36.4 ft3
Cargo Volume,
Maximum		16.910.1 ft3

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See a complete comparison of BMW 3-Series vs. Mercedes-Benz SLK specs.

Option Package Details
BMW 3-Series M340i

Luxury Design
FeatureValueRequested?
Additional chrome trim0No
Bright-finished exhaust tip(s)25Yes
Chrome interior accents (optional)0No
Total Requested25100%
Total Not Requested00%
Executive Tier
FeatureValueRequested?
Leather seating surfaces900Yes
Large color reconfigurable instrument cluster display250No
Steering-linked headlights150Yes
Auto-dimming headlights200No
Semi-automated parking system500No
Around view cameras300No
Wide-view front camera150No
Total Requested105043%
Total Not Requested140057%
Premium Tier
FeatureValueRequested?
Heated front seats200Yes
Head-up display (HUD)350No
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Media drive15Yes
In-vehicle Internet150No
Handwriting recognition200No
Siri Eyes Free support0No
S Voice support0No
4G LTE connectivity0No
Navigation map updates, three years0No
Navigation system600Yes
Traffic + travel information25Yes
Remote app25Yes
Total Requested96558%
Total Not Requested70042%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Automatic climate control, front
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125Yes
Total Requested325100%
Total Not Requested00%
Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150Yes
Parking guidance system - passive250Yes
Total Requested650100%
Total Not Requested00%
Lighting Package
FeatureValueRequested?
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Headlight washers50No
Total Requested65093%
Total Not Requested507%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
CD changer, in-dash200No
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Media drive, large15Yes
Traffic + travel information25Yes
SD Card slot25No
Total Requested74077%
Total Not Requested22523%

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