Mazda RX-8 Mazda RX-8 2011 Mercedes-Benz SLK Mercedes-Benz SLK 2016

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

Join Us

Mazda RX-8 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.

Mazda RX-8 vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $35,450

Mazda RX-8 Grand Touring   
Difference: $22,195

Lowest Total Invoice: $32,713

Mazda RX-8 Grand Touring   
Difference: $20,962

Calculate Payments

  Down Payment Interest Rate Term
Model Year2011201620162016
ModelRX-8SLKSLKSLK
TrimGrand TouringSLK300SLK350AMG SLK55
Body4dr Coupe2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $32,260 $47,000 $59,200 $72,600
Base Invoice $29,878 $43,710 $55,056 $67,518
Temporary spare tire 395      
Navigation system 2,000      
Premium 2 Package   4,490 4,490 3,050
Premium 1 Package   3,390    
Leather seating surfaces   770    
Rear spoiler   350 350  
Metallic paint (extra cost)   720 720 720
Temporary spare tire 320      
Navigation system 1,720      
Premium 2 Package   4,175 4,175 2,837
Premium 1 Package   3,153    
Leather seating surfaces   716    
Rear spoiler   326 326  
Metallic paint (extra cost)   670 670 670
Options (change) 2,395 9,720 5,560 3,770
Options (change) 2,040 9,040 5,171 3,507
Destination 795 925 925 925
Total Price $35,450 $57,645 $65,685 $77,295
Total Invoice $32,713 $53,675 $61,152 $71,950

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 Mazda RX-8 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: Mazda RX-8 vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mazda RX-8 Grand Touring
TrueDelta Adjusted Price Difference: $11,930
TrueDelta Adjusted Invoice Difference: $11,404
Model Year2011201620162016
ModelRX-8SLKSLKSLK
TrimGrand TouringSLK300SLK350AMG SLK55
Body4dr Coupe2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine232hp R2241hp I4302hp V6415hp V8
TransmissionM6T9T7T7
DrivetrainRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 9500, 11500, 11500, 11
Tire (rear if not all the same)225/45-18225/45-17225/40-18235/40-18
Total Price$35,450$57,645$65,685$77,295
Adjustments for Features0-10,265-10,065-10,715
Feature-Adjusted Total Price$35,450$47,380$55,620$66,580
Cost Above Minimum$0$0$8,240$19,200
Total Invoice$32,713$53,675$61,152$71,950
Adjustments for Features0-9,558-9,370-9,974
Feature-Adjusted Total Invoice$32,713$44,117$51,782$61,976
Cost Above Minimum$0$0$7,665$17,859

Return to top

Features Comparison: Mazda RX-8 vs. Mercedes-Benz SLK

Model Year2011201620162016
ModelRX-8SLKSLKSLK
TrimGrand TouringSLK300SLK350AMG SLK55
Body4dr Coupe2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150   
9-speed manually-shiftable automatic $1400  
7-speed manually-shiftable automatic  $1200$1200
RWD$0$0$0$0
Accessories 
Remote app $25$25$25
Remote window/roof operation $15$15$15
Tilt steering wheel, manual$150   
Tilt/telescoping steering wheel, power $350$350$350
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0$0$0
Blind spot warning system $200$200$200
Brake assist $50$50$50
Driver drowsiness monitor $150$150$150
Knee airbag, driver $75$75$75
Knee airbag, passenger $75$75$75
Roll bar $200$200$200
Torque vectoring, brake-based $100$100$100
Cargo Management 
Overhead sunglass holder$25   
Rear seat pass-through$100   
Second-row high console$250   
Climate Control 
Dual-zone climate control $125$125$125
Heated windshield washer nozzles $15$15$15
Residual heat $50$50$50
Drivetrain 
Limited-slip rear differential$300   
Engine / Motor 
Automatic start / stop $150$150$150
Dual-mode exhaust, switchable   $500
Exterior 
Body kit  $0$0
Glass roof panel(s) $300$300$300
Power retractable hardtop $6750$6750$6750
Sunroof$900   
Infotainment 
App support $0$0$0
Bluetooth audio streaming $25$25$25
CD changer, in-dash$325   
CD player $125$125$125
DVD-compatible player $0$0$0
HD radio $50$50$50
In-vehicle Internet $150$150$150
Media drive $15$15$15
Navigation map updates, three years $0$0$0
SD Card slot $25$25$25
SMS text-to-speech reader $25$25$25
Telematics service, such as OnStar, with navigation $225$225$225
Traffic + travel information $25$25$25
USB port $25$25$25
Voice control for nav and audio $100$100$100
Instruments, Lights, and Mirrors 
Analog clock $25$25$25
Auto-dimming driver-side mirror $75$75$75
Auto-dimming headlights $200$200$200
Compass $0$0$0
Fog light, rear $100$100$100
Fog lights$125   
Headlight washers $50$50$50
Illuminated visor mirror, driver$50   
Illuminated visor mirror, passenger$50   
Interior ambient lighting   $150
Mirror tilt-down in reverse $25$25$25
Power-folding mirrors $50$50$50
Steering-linked headlights $150$150$150
Trip computer $150$150$150
Turn signals on or near mirrors $25$25$25
Visor mirror, driver $10$10$10
Visor mirror, passenger $10$10$10
Seats and Interior Trim 
Aluminum trim $100$100$100
Center armrest(s), second row$50   
Leather door panel trim $250$250$250
Memory system, passenger seat $150$150$150
Neck-level heating, front seats $150$150$150
No leather in second row $-300$-300$-300
Power 4-way lumbar adjuster, driver seat $150$150$150
Power 4-way lumbar adjuster, passenger seat $150$150$150
Power fore-aft adjuster, passenger seat $100$100$100
Power height adjuster, passenger seat $100$100$100
Power lumbar adjuster, driver seat$100   
Power recliner, passenger seat $100$100$100
Power tilt adjuster, passenger seat $100$100$100
Synthetic suede inserts in leather seating surfaces   $0
Suspension, Wheels, and Tires 
Sport suspension (upgrade)   $0
Transmission 
Steering-wheel-mounted transmission controls $100$100$100
Total Value of Features$2,575$12,840$12,640$13,290
Value of Feature Adjustments$0$10,265$10,065$10,715
Value of Feature Adjustments0-9,558-9,370-9,974

Return to top

Specifications Comparison: Mazda RX-8 vs. Mercedes-Benz SLK

Model Year20112016
ModelRX-8SLK
Body4dr Coupe2dr Hardtop conv.
Wheelbase106.4 in95.7 in
Length175.6 in162.8 in
Width69.7 in71.5 in
Height52.8 in51.2 in
Curb Weight3,065 lb.3,242 lb.
Fuel Capacity15.9 gal.15.9 gal.
Row 1 Headroom38.2 in38.0 in
Row 1 Shoulder Room54.8 in52.2 in
Row 1 Hip Room53.3 in0.0 in
Row 1 Legroom42.7 in42.5 in
Row 2 Headroom36.8 in0.0 in
Row 2 Shoulder Room54.9 in0.0 in
Row 2 Hip Room48.1 in0.0 in
Row 2 Legroom32.2 in0.0 in
Cargo Volume,
Minimum
7.6 ft36.4 ft3
Cargo Volume,
Maximum
7.610.1 ft3

Return to top

Option Package Details
Mercedes-Benz SLK SLK300

Leather seating surfaces
FeatureValueRequested?
Leather seating surfaces900Yes
Leather door panel trim250No
No leather in second row-300No
Total Requested900106%
Total Not Requested-50-6%
Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125No
Analog clock25No
Blind spot warning system200No
Steering-linked headlights150No
Xenon HID headlights500Yes
Headlight washers50No
Auto-dimming headlights200No
DVD-compatible player0No
Media drive15No
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
Navigation system600Yes
Voice control for nav and audio100No
Total Requested130055%
Total Not Requested106545%
Premium 1 Package
FeatureValueRequested?
Heated front seats200Yes
Satellite radio200Yes
Surround sound250Yes
Proximity key250Yes
Remote window/roof operation15No
Neck-level heating, front seats150No
iPod integration100No
Harman/Kardon, 500W, 11 speakers (with subwoofer)350No
Total Requested90059%
Total Not Requested61541%

Option Package Details
Mercedes-Benz SLK SLK350

Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125No
Analog clock25No
Blind spot warning system200No
Steering-linked headlights150No
Xenon HID headlights500Yes
Headlight washers50No
Auto-dimming headlights200No
DVD-compatible player0No
Media drive15No
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
Navigation system600Yes
Voice control for nav and audio100No
Total Requested130055%
Total Not Requested106545%

Option Package Details
Mercedes-Benz SLK AMG SLK55

Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125No
Blind spot warning system200No
DVD-compatible player0No
Media drive15No
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
Navigation system600Yes
Voice control for nav and audio100No
Total Requested80056%
Total Not Requested64044%

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 Coupes
See TrueDelta's information for all Mazda models.