BMW 3-Series BMW 3-Series 2018 Mercedes-Benz SLK Mercedes-Benz SLK 2009

We are 103,000+ car owners sharing real-world car information.

Join Us

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: $70,895

BMW 3-Series M3   
Difference: $2,140

Lowest Total Invoice: $66,640

BMW 3-Series M3   
Difference: $1,414

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182009
Model3-SeriesSLK
TrimM3SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $65,500 $65,700
Base Invoice $61,595 $61,101
7-speed automated manual 2,900  
Metallic paint (extra cost) 550 720
Aluminum trim 0  
Leather seating surfaces 950  
Sunroof 0  
Lighting Package   1,030
Multimedia Package   2,980
Automatic climate control, front   730
7-speed automated manual 2,670  
Metallic paint (extra cost) 505 670
Aluminum trim 0  
Leather seating surfaces 875  
Sunroof 0  
Lighting Package   958
Multimedia Package   2,771
Automatic climate control, front   679
Options (change) 4,400 5,460
Options (change) 4,050 5,078
Destination 995 875
Gas Tax 0 1,000
Total Price $70,895 $73,035
Total Invoice $66,640 $68,054

Return to top

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

Dealer Price Quotes

Want to find out how much dealers are willing to discount these cars?

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: Mercedes-Benz SLK SLK55 AMG
TrueDelta Adjusted Price Difference: $230
TrueDelta Adjusted Invoice Difference: $794
Model Year20182009
Model3-SeriesSLK
TrimM3SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine425hp I6355hp V8
TransmissionS7T7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)17/24 MPG14/22 MPG
Audio (watts, speakers)600, 16380, 11
Tire (rear if not all the same)255/40-18225/40-18
Total Price$70,895$73,035
Adjustments for Features0-2,370
Feature-Adjusted Total Price$70,895$70,665
Total Invoice$66,640$68,054
Adjustments for Features0-2,208
Feature-Adjusted Total Invoice$66,640$65,846

Return to top

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

Model Year20182009
Model3-SeriesSLK
TrimM3SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
7-speed automated manual$1200 
7-speed manually-shiftable automatic $1200
RWD$0$0
Accessories 
Hands-free trunk or liftgate$100 
Power rear side windows$200 
Proximity key$250 
Remote app$25 
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Rearview camera$200 
Side curtain airbags$350 
Temporary spare tire $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 
Automatic start / stop$150 
Regenerative braking$0 
Exterior 
Black exterior trim (optional)$0 
Body kit $0
Painted brake calipers (optional)$0 
Power retractable hardtop $6750
Sport rocker panels (optional)$0 
Sunroof$900 
Infotainment 
4G LTE connectivity$0 
App support$0 
Bluetooth audio streaming$25 
CD changer, in-dash $325
CD player$125 
Handwriting recognition$200 
HD radio$50 
In-vehicle Internet$150 
iPod integration $100
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 
Traffic + travel information$25 
USB port$25 
Voice control for external devices$0 
Instruments, Lights, and Mirrors 
Analog clock $25
Compass$0 
Cornering lights $50
Fog light, rear $100
Fog lights $125
Headlight washers $50
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
LED headlights$1000 
Power-folding mirrors$50 
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
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 
Adaptive dampers - electrical$500 
Electronic systems calibration selector$200 
Performance steering system (optional)$0 
Transmission 
Launch control$100 
Total Value of Features$7,875$10,245
Value of Feature Adjustments$0$2,370
Value of Feature Adjustments0-2,208

Return to top

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

Model Year20182009
Model3-SeriesSLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase110.6 in95.7 in
Length182.5 in160.7 in
Width71.3 in70.4 in
Height56.3 in51.0 in
Curb Weight3,630 lb.3,420 lb.
Fuel Capacity15.8 gal.18.5 gal.
Row 1 Headroom40.3 in37.9 in
Row 1 Shoulder Room55.1 in52.2 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom42.0 in42.5 in
Row 2 Headroom37.7 in0.0 in
Row 2 Shoulder Room55.1 in0.0 in
Row 2 Legroom35.1 in0.0 in
Cargo Volume,
Minimum
13.0 ft36.5 ft3
Cargo Volume,
Maximum
13.09.8 ft3

Return to top

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Cornering lights50No
Total Requested50083%
Total Not Requested10017%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
Surround sound250Yes
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Media drive, large15Yes
SD Card slot25No
Total Requested96572%
Total Not Requested37528%

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

See TrueDelta's information for all Sedans and Wagons.
See TrueDelta's information for all BMW models.