Audi A4 / S4 Audi A4 / S4 2018 Mercedes-Benz SL Mercedes-Benz SL 2008

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Audi A4 / S4 vs. Mercedes-Benz SL 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.

Audi A4 / S4 vs. Mercedes-Benz SL Invoice Comparison

Lowest Total Price: $45,540

Audi A4 / S4 A4 2.0T ultra   
Difference: $56,745

Lowest Total Invoice: $42,422

Audi A4 / S4 A4 2.0T ultra   
Difference: $52,855

Calculate Payments

  Down Payment Interest Rate Term
Model Year2018201820182008200820082008
ModelA4 / S4A4 / S4A4 / S4SLSLSLSL
TrimA4 2.0T ultraA4 2.0TS4 3.0TSL550SL600SL55 AMGSL65 AMG
Body4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $36,000 $40,500 $51,400 $95,300 $133,200 $129,300 $187,200
Base Invoice $33,480 $37,666 $47,802 $88,629 $123,876 $120,249 $174,096
Sport Package 750            
Premium Plus Package 3,200 3,200          
Navigation and Telematics Package 3,000 3,000 2,600        
Metallic paint (extra cost) 575 575 575        
Metal pedals 240            
Cooled or ventilated front seats 800            
Sport Plus Package   3,400          
S Sport Package     2,500        
Warm Weather Package     950        
Premium I Package       3,170   2,500  
Obstacle detection, rear       1,130 1,130 1,130 1,130
Voice control for nav and audio       510 510 510 510
Wood trim           0 0
Sport Package 698            
Premium Plus Package 2,976 2,976          
Navigation and Telematics Package 2,790 2,790 2,418        
Metallic paint (extra cost) 536 536 536        
Metal pedals 223            
Cooled or ventilated front seats 744            
Sport Plus Package   3,162          
S Sport Package     2,326        
Warm Weather Package     884        
Premium I Package       2,948   2,325  
Obstacle detection, rear       1,051 1,051 1,051 1,051
Voice control for nav and audio       474 474 474 474
Wood trim           0 0
Options (change) 8,565 10,175 6,625 4,810 1,640 4,140 1,640
Options (change) 7,967 9,464 6,164 4,473 1,525 3,850 1,525
Destination 975 975 975 875 875 875 875
Gas Tax 0 0 0 1,300 2,600 2,600 2,600
Total Price $45,540 $51,650 $59,000 $102,285 $138,315 $136,915 $192,315
Total Invoice $42,422 $48,105 $54,941 $95,277 $128,876 $127,574 $179,096

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

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TrueDelta Value Comparison: Audi A4 / S4 vs. Mercedes-Benz SL

Lowest Adjusted Price and Invoice: Audi A4 / S4 A4 2.0T ultra
TrueDelta Adjusted Price Difference: $48,945
TrueDelta Adjusted Invoice Difference: $45,589
Model Year2018201820182008200820082008
ModelA4 / S4A4 / S4A4 / S4SLSLSLSL
TrimA4 2.0T ultraA4 2.0TS4 3.0TSL550SL600SL55 AMGSL65 AMG
Body4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine190hp I4252hp I4354hp V6382hp V8510hp V12510hp V8604hp V12
TransmissionS7S7T8T7T5T5T5
DrivetrainFWDAWDAWDRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)755, 19755, 19755, 19250, 8250, 8250, 8250, 8
Tire (rear if not all the same)245/40-18245/40-18245/40-18255/40-18255/40-18255/35-19255/35-19
Total Price$45,540$51,650$59,000$102,285$138,315$136,915$192,315
Adjustments for Features0-2,900-3,450-7,800-8,600-8,350-8,700
Feature-Adjusted Total Price$45,540$48,750$55,550$94,485$129,715$128,565$183,615
Cost Above Minimum$0$3,210$10,010$0$35,230$34,080$89,130
Total Invoice$42,422$48,105$54,941$95,277$128,876$127,574$179,096
Adjustments for Features0-2,701-3,213-7,266-8,013-7,780-8,102
Feature-Adjusted Total Invoice$42,422$45,404$51,728$88,011$120,863$119,794$170,994
Cost Above Minimum$0$2,982$9,306$0$32,852$31,783$82,983

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Features Comparison: Audi A4 / S4 vs. Mercedes-Benz SL

Model Year2018201820182008200820082008
ModelA4 / S4A4 / S4A4 / S4SLSLSLSL
TrimA4 2.0T ultraA4 2.0TS4 3.0TSL550SL600SL55 AMGSL65 AMG
Body4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
7-speed automated manual$1200$1200     
8-speed manually-shiftable automatic  $1300    
7-speed manually-shiftable automatic   $1200   
5-speed manually-shiftable automatic    $1000$1000$1000
FWD$0      
AWD $1700$1700    
RWD   $0$0$0$0
Accessories 
Power rear side windows$200$200$200    
Power trunk closer    $350 $350
Remote app$25$25$25    
Remote window/roof operation   $15$15$15$15
Sunshades, second row  $125    
Tilt/telescoping steering wheel, manual$250$250$250    
Tilt/telescoping steering wheel, power   $350$350$350$350
Wind blocker, small   $100$100$100$100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats   $0$0$0$0
Auto-raising roll bars / headrests   $500$500$500$500
Automatic braking, high-speed or partial$200$200$200    
Automatic braking, low-speed$200$200$200    
Blind spot warning system$200$200$200    
Collision preparation system, rear$100$100$100    
Cross-traffic warning, rear$100$100$100    
Driver drowsiness monitor$150$150$150    
Forward collision warning$200$200$200    
Knee airbag, passenger$75$75$75    
Pedestrian detection$50$50$50    
Radar- or camera-based collision preparation system$0$0$0    
Rearview camera$200$200$200    
Rollover sensor$50$50$50    
Secondary collision brake assist$25$25$25    
Side curtain airbags$350$350$350    
Torque vectoring, brake-based$100$100$100    
Vehicle exit assist$25$25$25    
Cargo Management 
Storage compartment under front seat(s)   $50$50$50$50
Climate Control 
Rear air vents with automatic controls$250$250$250    
Residual heat   $50$50$50$50
Wiper de-icer   $25$25$25$25
Drivetrain 
Active rear differential  $500    
Engine / Motor 
Automatic start / stop$150$150$150    
Regenerative braking$0$0$0    
Exterior 
Body kit$0$0$0  $0$0
Painted brake calipers (optional)  $0    
Power retractable hardtop   $6750$6750$6750$6750
Rear spoiler  $200    
Sunroof$900$900$900    
Infotainment 
4G LTE connectivity$0$0$0    
Android Auto support$100$100$100    
Apple CarPlay support$100$100$100    
Aux input$50$50$50    
Bluetooth audio streaming$25$25$25    
CD changer, remote   $200$200$200$200
CD player   $125$125$125$125
CD player, remote$100$100$100    
DVD-compatible player$0$0$0    
Handwriting recognition$200$200$200    
HD radio$50$50$50    
In-vehicle Internet$150$150$150    
Media drive$15$15$15    
SD Card slot$25$25$25    
Traffic + travel information$25$25$25    
USB port$25$25$25    
Wi-Fi hotspot$50$50$50    
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75$75$75    
Boost gauge  $75    
Compass$0$0$0    
Cornering lights   $50$50$50$50
Headlight washers   $50$50$50$50
Large color reconfigurable instrument cluster display$250$250$250    
LED headlights$1000$1000$1000    
Mirror tilt-down in reverse   $25$25$25$25
Power-folding mirrors  $50    
Xenon HID headlights   $500$500$500$500
Seats and Interior Trim 
Aluminum trim$100$100$100    
Center armrest(s), second row$50$50$50    
Cooled or ventilated front seats$300 $300$300$300$300$300
Door sill trim plates$100$100 $100$100$100$100
Folding second row seats$300$300$300    
Illuminated door sill trim plates  $200    
Leather door panel trim   $250$250$250$250
Leather-wrapped steering wheel$150$150$150$150   
Manual thigh support length adjuster, driver seat$50$50$50    
Manual thigh support length adjuster, passenger seat$50$50$50    
Memory system, passenger seat   $150$150$150$150
No leather in second row   $-300$-300$-300$-300
Power headrest height adjuster, driver seat   $50$50$50$50
Power headrest height adjuster, passenger seat   $50$50$50$50
Power seatback bolsters, driver seat   $100$100$100$100
Power seatback bolsters, passenger seat   $100$100$100$100
Power thigh support length adjuster, driver seat   $100$100$100$100
Power thigh support length adjuster, passenger seat   $100$100$100$100
Synthetic suede headliner    $650$650$650
Synthetic suede inserts in leather seating surfaces $0     
Synthetic suede steering wheel     $150$150
Upholstered door armrests (optional) $0     
Upholstered instrument panel, leather   $1000$1000$1000$1000
Wood trim   $300$300$300$300
Wood/leather-wrapped steering wheel    $150  
Suspension, Wheels, and Tires 
Active steering $1000     
Adaptive dampers - electrical $500$500    
Adaptive hydraulic struts, auto-leveling and ht. adjustable   $4000$4000$4000$4000
Electronic systems calibration selector$200$200$200    
Sport suspension (upgrade)$0$0$0  $0$0
Transmission 
Launch control  $100    
Steering-wheel-mounted transmission controls$100$100$100  $100$100
Total Value of Features$8,640$11,540$12,090$16,440$17,240$16,990$17,340
Value of Feature Adjustments$0$2,900$3,450$7,800$8,600$8,350$8,700
Value of Feature Adjustments0-2,701-3,213-7,266-8,013-7,780-8,102

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Specifications Comparison: Audi A4 / S4 vs. Mercedes-Benz SL

Model Year20182008
ModelA4 / S4SL
Body4dr Sedan2dr Hardtop conv.
Wheelbase111.0 in100.8 in
Length186.1 in178.5 in
Width72.5 in71.5 in
Height56.2 in51.0 in
Curb Weight3,451 lb.4,221 lb.
Fuel Capacity16.9 gal.21.1 gal.
Row 1 Headroom38.9 in37.7 in
Row 1 Shoulder Room55.9 in54.0 in
Row 1 Hip Room0.0 in53.9 in
Row 1 Legroom41.3 in42.9 in
Row 2 Headroom37.4 in0.0 in
Row 2 Shoulder Room54.5 in0.0 in
Row 2 Legroom35.7 in0.0 in
Cargo Volume,
Minimum
13.0 ft37.3 ft3
Cargo Volume,
Maximum
13.010.2 ft3

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Option Package Details
Audi A4 / S4 A4 2.0T ultra

Sport Package
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Manual thigh support length adjuster, driver seat50Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Manual thigh support length adjuster, passenger seat50Yes
Front sport buckets100Yes
Dark-colored headliner (optional)0No
Total Requested600100%
Total Not Requested00%
Premium Plus Package
FeatureValueRequested?
Telematics service, such as OnStar200Yes
Obstacle detection, front150Yes
Obstacle detection, rear250Yes
Surround sound250Yes
245/40HR18 tires400No
HD radio50No
Blind spot warning system200No
LED headlights500No
Cross-traffic warning, rear100No
Collision preparation system, rear100No
Vehicle exit assist25No
Bang & Olufsen, 755W, 19 speakers (with subwoofer)350No
Auto-dimming passenger-side mirror75No
Memory system, driver seat200Yes
Satellite radio200Yes
Auto-dimming driver-side mirror75Yes
Alarm100No
Proximity key250Yes
Total Requested157545%
Total Not Requested190055%
Navigation and Telematics Package
FeatureValueRequested?
Large color reconfigurable instrument cluster display250No
4G LTE connectivity0No
Telematics service, such as OnStar200Yes
Handwriting recognition200No
Remote app25No
Speed limit information0No
Traffic + travel information25No
In-vehicle Internet150No
Wi-Fi hotspot50No
Navigation system600Yes
DVD-compatible player0No
Voice control for nav and audio75Yes
HD radio50No
Media drive15No
Total Requested87553%
Total Not Requested76547%

Option Package Details
Audi A4 / S4 A4 2.0T

Sport Plus Package
FeatureValueRequested?
Adaptive dampers - electrical500Yes
Synthetic suede inserts in leather seating surfaces0No
Active steering1000No
Metal pedals75Yes
245/40YR18 tires400No
Upholstered door armrests (optional)0No
Dark-colored headliner (optional)0No
Sport suspension (upgrade)250Yes
Manual thigh support length adjuster, driver seat50Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Manual thigh support length adjuster, passenger seat50Yes
Front sport buckets100Yes
Total Requested117546%
Total Not Requested140054%
Premium Plus Package
FeatureValueRequested?
Telematics service, such as OnStar200Yes
Obstacle detection, front150Yes
Obstacle detection, rear250Yes
Surround sound250Yes
245/40HR18 tires400No
HD radio50No
Blind spot warning system200No
LED headlights500No
Cross-traffic warning, rear100No
Collision preparation system, rear100No
Vehicle exit assist25No
Bang & Olufsen, 755W, 19 speakers (with subwoofer)350No
Auto-dimming passenger-side mirror75No
Memory system, driver seat200Yes
Satellite radio200Yes
Auto-dimming driver-side mirror75Yes
Alarm100No
Proximity key250Yes
Total Requested157545%
Total Not Requested190055%
Navigation and Telematics Package
FeatureValueRequested?
Large color reconfigurable instrument cluster display250No
4G LTE connectivity0No
Telematics service, such as OnStar200Yes
Handwriting recognition200No
Remote app25No
Speed limit information0No
Traffic + travel information25No
In-vehicle Internet150No
Wi-Fi hotspot50No
Navigation system600Yes
DVD-compatible player0No
Voice control for nav and audio75Yes
HD radio50No
Media drive15No
Total Requested87553%
Total Not Requested76547%

Option Package Details
Audi A4 / S4 S4 3.0T

S Sport Package
FeatureValueRequested?
Adaptive dampers - electrical500Yes
Active rear differential500No
Painted brake calipers (optional)0No
Total Requested50050%
Total Not Requested50050%
Navigation and Telematics Package
FeatureValueRequested?
Large color reconfigurable instrument cluster display250No
4G LTE connectivity0No
Handwriting recognition200No
Remote app25No
Speed limit information0No
Traffic + travel information25No
In-vehicle Internet150No
Wi-Fi hotspot50No
Navigation system600Yes
DVD-compatible player0No
Voice control for nav and audio75Yes
Media drive15No
Total Requested67549%
Total Not Requested71551%
Warm Weather Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Sunshades, second row125No
Total Requested30071%
Total Not Requested12529%

Option Package Details
Mercedes-Benz SL SL550

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150Yes
Total Requested400100%
Total Not Requested00%
Premium I Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Cornering lights50No
Proximity key250Yes
Power 4-way lumbar adjuster, driver seat50Yes
Power seatback bolsters, driver100No
Power 4-way lumbar adjuster, passenger seat50Yes
Power seatback bolsters, passenger seat100No
Front sport buckets100Yes
Total Requested75075%
Total Not Requested25025%

Option Package Details
Mercedes-Benz SL SL600

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150Yes
Total Requested400100%
Total Not Requested00%

Option Package Details
Mercedes-Benz SL SL55 AMG

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150Yes
Total Requested400100%
Total Not Requested00%
Premium I Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Cornering lights50No
Proximity key250Yes
Total Requested55092%
Total Not Requested508%

Option Package Details
Mercedes-Benz SL SL65 AMG

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150Yes
Total Requested400100%
Total Not Requested00%

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