Audi A8 / S8 Audi A8 / S8 2018 Acura RDX Acura RDX 2018

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

Join Us

Audi A8 / S8 vs. Acura RDX 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 A8 / S8 vs. Acura RDX Invoice Comparison

Lowest Total Price: $43,475

Acura RDX   
Difference: $40,000

Lowest Total Invoice: $41,317

Acura RDX   
Difference: $36,383

Calculate Payments

  Down Payment Interest Rate Term
Model Year201820182018
ModelA8 / S8A8 / S8RDX
TrimA8 L 3.0TA8 L 4.0T SportBase
Body4dr Sedan, ext.4dr Sedan, ext.4dr SUV
Base Price $82,500 $92,000 $35,800
Base Invoice $76,725 $85,560 $33,995
Executive Plus Package   1,750  
Advance Package     6,700
Executive Plus Package   1,628  
Advance Package     6,347
Options (change) 0 1,750 6,700
Options (change) 0 1,628 6,347
Destination 975 975 975
Total Price $83,475 $94,725 $43,475
Total Invoice $77,700 $88,163 $41,317

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 Audi A8 / S8 dealer quotes or Acura RDX 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: Audi A8 / S8 vs. Acura RDX

Lowest Adjusted Price and Invoice: Acura RDX
TrueDelta Adjusted Price Difference: $35,395
TrueDelta Adjusted Invoice Difference: $32,097
Model Year201820182018
ModelA8 / S8A8 / S8RDX
TrimA8 L 3.0TA8 L 4.0T SportBase
Body4dr Sedan, ext.4dr Sedan, ext.4dr SUV
Engine333hp V6450hp V8279hp V6
TransmissionT8T8T6
DrivetrainAWDAWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)630, 14630, 14410, 10
Tire (rear if not all the same)255/45-19265/40-20235/60-18
Total Price$83,475$94,725$43,475
Adjustments for Features-4,605-10,4300
Feature-Adjusted Total Price$78,870$84,295$43,475
Cost Above Minimum$0$5,425$0
Total Invoice$77,700$88,163$41,317
Adjustments for Features-4,286-9,7070
Feature-Adjusted Total Invoice$73,414$78,456$41,317
Cost Above Minimum$0$5,042$0

Return to top

Features Comparison: Audi A8 / S8 vs. Acura RDX

Model Year201820182018
ModelA8 / S8A8 / S8RDX
TrimA8 L 3.0TA8 L 4.0T SportBase
Body4dr Sedan, ext.4dr Sedan, ext.4dr SUV
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300$1300 
6-speed manually-shiftable automatic  $1100
AWD$1700$1700 
FWD  $0
Accessories 
Active noise reduction $0$0
Adaptive cruise control, all-speed $850$850
Cruise control$150  
Hands-free trunk or liftgate$100$100 
Heated steering wheel$100$100 
Power door closers$300$300 
Power liftgate  $350
Power trunk closer$350$350 
Remote start  $150
Sunshade, rear, power$225$225 
Sunshades, second row, power$225$225 
Tilt/telescoping steering wheel, manual  $250
Tilt/telescoping steering wheel, power$350$350 
Brakes, Airbags, and Other Safety 
Around view cameras $500 
Automatic braking, high-speed or partial  $200
Automatic braking, low-speed $200$200
Blind spot warning system $200$200
Brake- or yaw-sensor-initiated collision preparation system$0  
Collision preparation system, rear $100 
Cross-traffic warning, rear  $100
Forward collision warning $200$200
Full-size spare tire$225$225 
Knee airbag, driver$75$75 
Knee airbag, passenger$75$75 
Lane departure prevention, steering-based $200 
Lane departure warning $200$200
Lane keeping assist  $400
Pedestrian detection  $50
Radar- or camera-based collision preparation system $0$0
Rear side airbags$300$300 
Rearview camera$200 $200
Temporary spare tire  $150
Wide-view front camera $150 
Wide-view rear camera $0$0
Cargo Management 
Air-conditioned storage compartment$50$50 
Cargo cover  $75
Cargo net$40$40 
Rear seat pass-through$100$100 
Ski sack$50$50 
Climate Control 
Automatic air recirculation$100$100 
Heated windshield washer nozzles$15$15 
Rear air vents  $100
Rear air vents with automatic controls$250$250 
Rear dual-zone climate control$125$125 
Rear wiper  $175
Residual heat$50$50 
Engine / Motor 
Automatic start / stop$150$150 
Exterior 
Bodyside cladding  $350
Deep-tinted rear windows  $275
Laminated front side windows$200$200 
Laminated rear side windows$100$100 
Panoramic sunroof with venting rear panel $1500 
Rear spoiler  $200
Sunroof$900 $900
Infotainment 
App support  $0
DVD-Audio-compatible player  $0
DVD-compatible player$0$0 
Handwriting recognition$200$200 
In-vehicle Internet$150$150 
SD Card slot$25$25 
Siri Eyes Free support  $0
SMS text-to-speech reader  $25
Telematics service, such as OnStar  $200
Wi-Fi hotspot$50$50 
Instruments, Lights, and Mirrors 
Analog clock$25$25 
Auto-dimming headlights $200 
Cornering lights$50$50 
Fog light, rear$100$100 
Fog lights  $125
Head-up display (HUD) $350 
Headlight washers$50$50 
Illuminated vanity mirrors, rear seat$100$100 
Interior ambient lighting  $150
Interior ambient lighting, configurable$150$150 
Power-folding mirrors$50$50 
Spotter mirror(s)  $50
Steering-linked headlights$150$150 
Seats and Interior Trim 
Cooled or ventilated front seats $300$300
Cooled or ventilated second row seats $200 
Folding second row seats  $300
Heated second row seats$200$200 
Leather door panel trim$250$250 
Massage, driver seat $100 
Massage, passenger seat $100 
Massage, second row seats $150 
Memory system, passenger seat$150$150 
Memory system, second row seats $150 
Power 4-way lumbar adjuster, driver seat$150$150 
Power 4-way lumbar adjuster, passenger seat$150$150 
Power 4-way lumbar adjuster, second row seats $225 
Power headrest height adjuster, driver seat$50$50 
Power headrest height adjuster, passenger seat$50$50 
Power lumbar adjuster, driver seat  $100
Power recliner, second row seats $150 
Power seat belt height adjusters, front row$25$25 
Power seatback bolsters, driver seat $100 
Power seatback bolsters, passenger seat $100 
Power thigh bolsters, driver seat $100 
Power thigh bolsters, passenger seat $100 
Power thigh support length adjuster, driver seat$100$100 
Power thigh support length adjuster, passenger seat$100$100 
Power upper seatback recliner, driver seat$100$100 
Power upper seatback recliner, passenger seat$100$100 
Synthetic suede headliner $650 
Upholstered instrument panel$300$300 
Wood trim$300$300 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500$500 
Adaptive dampers - mechanical  $100
Air suspension, auto-leveling and height adjustable$1000$1000 
Alloy wheels$350$350 
Electronic systems calibration selector$200$200 
Machined alloy wheels  $350
Total Value of Features$12,980$18,805$8,375
Value of Feature Adjustments$4,605$10,430$0
Value of Feature Adjustments-4,286-9,7070

Return to top

Specifications Comparison: Audi A8 / S8 vs. Acura RDX

Model Year20182018
ModelA8 / S8RDX
Body4dr Sedan, ext.4dr SUV
Wheelbase122.9 in105.7 in
Length207.4 in184.4 in
Width76.7 in73.7 in
Height57.9 in65.0 in
Curb Weight4,465 lb.3,738 lb.
Fuel Capacity21.7 gal.16.0 gal.
Row 1 Headroom37.2 in38.7 in
Row 1 Shoulder Room59.1 in58.7 in
Row 1 Hip Room0.0 in55.7 in
Row 1 Legroom41.4 in42.0 in
Row 2 Headroom39.1 in38.1 in
Row 2 Shoulder Room57.8 in57.2 in
Row 2 Hip Room0.0 in53.8 in
Row 2 Legroom42.9 in38.3 in
Cargo Volume,
Minimum
14.2 ft326.1 ft3
Cargo Volume,
Maximum
14.261.3 ft3

Return to top

Option Package Details
Audi A8 / S8 A8 L 4.0T Sport

Executive Plus Package
FeatureValueRequested?
Cooled or ventilated second row seats200No
Power recliner, second row seats150No
Massage, second row seats150No
Power 4-way lumbar adjuster, second row seats225No
Memory system, second row seats150No
Automatic braking, low-speed200Yes
Forward collision warning200Yes
Lane departure prevention, steering-based200Yes
Auto-dimming headlights200No
Radar- or camera-based collision preparation system0Yes
Lane departure warning200Yes
Adaptive cruise control, all-speed700Yes
Total Requested150058%
Total Not Requested107542%

Option Package Details
Acura RDX

Advance Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Rain-sensing wipers100Yes
Fog lights125No
Obstacle detection, front150Yes
Obstacle detection, rear250Yes
Auto-dimming driver-side mirror75Yes
Remote start150No
Auto-dimming passenger-side mirror75Yes
Power height adjuster, passenger seat100Yes
Power tilt adjuster, passenger seat100Yes
Surround sound250Yes
Voice control for nav and audio100Yes
HD radio50Yes
Blind spot warning system200Yes
Media drive15Yes
Traffic + travel information25Yes
Cross-traffic warning, rear100No
Navigation system600Yes
Leather seating surfaces900Yes
Telematics service, such as OnStar200No
DVD-Audio-compatible player0Yes
ELS, 410W, 10 speakers (with subwoofer)350No
Automatic braking, high-speed or partial200No
Forward collision warning200Yes
Pedestrian detection50No
Lane keeping assist400No
Radar- or camera-based collision preparation system0Yes
Lane departure warning200Yes
Adaptive cruise control, all-speed700Yes
Automatic braking, low-speed200Yes
Total Requested459074%
Total Not Requested157526%

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
See TrueDelta's information for all Audi models.