Cadillac STS Cadillac STS 2006 Acura RDX Acura RDX 2018

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

Join Us

Cadillac STS 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.

Cadillac STS vs. Acura RDX Invoice Comparison

Lowest Total Price: $43,475

Acura RDX   
Difference: $6,550

Lowest Total Invoice: $41,317

Acura RDX   
Difference: $4,224

Calculate Payments

  Down Payment Interest Rate Term
Model Year2006200620062018
ModelSTSSTSSTSRDX
TrimV6V8STS-VBase
Body4dr Sedan4dr Sedan4dr Sedan4dr SUV
Base Price $41,020 $47,520 $73,070 $35,800
Base Invoice $37,944 $43,956 $67,704 $33,995
Preferred Equipment Group 1SC 8,285      
Preferred Equipment Group 1SF   10,740    
Sunroof     1,200  
Advance Package       6,700
Preferred Equipment Group 1SC 6,877      
Preferred Equipment Group 1SF   8,914    
Sunroof     996  
Advance Package       6,347
Options (change) 8,285 10,740 1,200 6,700
Options (change) 6,877 8,914 996 6,347
Destination 720 720 720 975
Gas Tax 0 0 2,100 0
Total Price $50,025 $58,980 $77,090 $43,475
Total Invoice $45,541 $53,590 $71,520 $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 Cadillac STS 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: Cadillac STS vs. Acura RDX

Lowest Adjusted Price and Invoice: Acura RDX
TrueDelta Adjusted Price Difference: $10,540
TrueDelta Adjusted Invoice Difference: $8,016
Model Year2006200620062018
ModelSTSSTSSTSRDX
TrimV6V8STS-VBase
Body4dr Sedan4dr Sedan4dr Sedan4dr SUV
Engine254hp V6320hp V8469hp V8279hp V6
TransmissionT5T5T6T6
DrivetrainRWDRWDRWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15300, 15300, 15410, 10
Tire (rear if not all the same)235/50-17235/50-17255/45-18235/60-18
Total Price$50,025$58,980$77,090$43,475
Adjustments for Features0-1,250-1,715-3,990
Feature-Adjusted Total Price$50,025$57,730$75,375$39,485
Cost Above Minimum$0$7,705$25,350$0
Total Invoice$45,541$53,590$71,520$41,317
Adjustments for Features0-1,136-1,591-3,792
Feature-Adjusted Total Invoice$45,541$52,454$69,929$37,525
Cost Above Minimum$0$6,913$24,388$0

Return to top

Features Comparison: Cadillac STS vs. Acura RDX

Model Year2006200620062018
ModelSTSSTSSTSRDX
TrimV6V8STS-VBase
Body4dr Sedan4dr Sedan4dr Sedan4dr SUV
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000$1000  
6-speed manually-shiftable automatic  $1100$1100
RWD$0$0$0 
FWD   $0
Accessories 
Active noise reduction   $0
Adaptive cruise control, all-speed   $850
Cruise control$150$150$150 
Heated steering wheel$100$100$100 
Power liftgate   $350
Remote window/roof operation   $15
Tilt/telescoping steering wheel, manual   $250
Tilt/telescoping steering wheel, power$350$350$350 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats   $0
Automatic braking, high-speed or partial   $200
Automatic braking, low-speed   $200
Blind spot warning system   $200
Cross-traffic warning, rear   $100
Forward collision warning   $200
Lane departure warning   $200
Lane keeping assist   $400
Obstacle detection, front   $150
Pedestrian detection   $50
Radar- or camera-based collision preparation system   $0
Rearview camera   $200
Rollover sensor   $50
Tires, run-flat  $150 
Wide-view rear camera   $0
Cargo Management 
Cargo cover   $75
Cargo net$40$40$40 
Rear seat pass-through$100$100$100 
Climate Control 
Heated windshield washer nozzles  $15 
Rear air vents   $100
Rear air vents with manual controls$150$150$150 
Rear wiper   $175
Drivetrain 
Limited-slip rear differential$300$300$300 
Exterior 
Bodyside cladding   $350
Deep-tinted rear windows   $275
Laminated front side windows$200$200$200 
Infotainment 
App support   $0
Aux input   $50
Bluetooth audio streaming   $25
CD changer, in-dash$325$325$325 
CD player   $125
DVD-compatible player$0$0$0 
HD radio   $50
Media drive   $15
MP3-compatible player   $50
Satellite radio   $200
Siri Eyes Free support   $0
SMS text-to-speech reader   $25
Traffic + travel information   $25
Instruments, Lights, and Mirrors 
Auto-dimming headlights $200$200 
Auto-dimming passenger-side mirror   $75
Compass   $0
Headlight washers $50$50 
LED headlights   $1000
Mirror tilt-down in reverse   $25
Spotter mirror(s)   $50
Xenon HID headlights $500$500 
Seats and Interior Trim 
Cooled or ventilated front seats$300$300 $300
Folding second row seats   $300
Heated second row seats$200$200$200 
Leather-wrapped steering wheel  $150$150
Power 4-way lumbar adjuster, driver seat$150$150$150 
Power 4-way lumbar adjuster, passenger seat$150$150$150 
Power lumbar adjuster, driver seat   $100
Synthetic suede inserts in leather seating surfaces  $0 
Upholstered instrument panel, leather  $1000 
Wood trim$300$300$300 
Wood/leather-wrapped steering wheel$150$150  
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500  
Auto-leveling rear shocks$200$200$200 
Machined alloy wheels   $350
Performance steering system (optional)$0 $0 
Polished alloy wheels$350$350$350 
Sport suspension (upgrade)$0$0$0 
Transmission 
Steering-wheel-mounted transmission controls   $100
Total Value of Features$4,515$5,765$6,230$8,505
Value of Feature Adjustments$0$1,250$1,715$3,990
Value of Feature Adjustments0-1,136-1,591-3,792

Return to top

Specifications Comparison: Cadillac STS vs. Acura RDX

Model Year20062018
ModelSTSRDX
Body4dr Sedan4dr SUV
Wheelbase116.4 in105.7 in
Length196.3 in184.4 in
Width72.6 in73.7 in
Height57.6 in65.0 in
Curb Weight3,961 lb.3,738 lb.
Fuel Capacity17.0 gal.16.0 gal.
Row 1 Headroom38.7 in38.7 in
Row 1 Shoulder Room58.6 in58.7 in
Row 1 Hip Room54.6 in55.7 in
Row 1 Legroom42.6 in42.0 in
Row 2 Headroom37.9 in38.1 in
Row 2 Shoulder Room57.4 in57.2 in
Row 2 Hip Room55.6 in53.8 in
Row 2 Legroom38.3 in38.3 in
Cargo Volume,
Minimum
13.8 ft326.1 ft3
Cargo Volume,
Maximum
13.861.3 ft3

Return to top

Option Package Details
Cadillac STS V6

Preferred Equipment Group 1SC
FeatureValueRequested?
Sport suspension (upgrade)250No
Performance braking system (optional)250No
Cooled or ventilated front seats300Yes
Sunroof900Yes
Limited-slip rear differential300No
Rear spoiler200Yes
Wood/leather-wrapped steering wheel0No
Performance steering system (optional)250No
Heated front seats200Yes
CD changer, in-dash200No
Power 4-way lumbar adjuster, driver seat150No
Power 4-way lumbar adjuster, passenger seat150No
Rain-sensing wipers100Yes
Memory system, driver seat200Yes
Interior air filter0Yes
Polished alloy wheels0No
Wood trim300No
Heated second row seats200No
Universal garage door opener100Yes
Bluetooth cell phone link100Yes
Heated steering wheel100No
Cargo net40No
Surround sound250Yes
DVD-compatible player0No
Voice control for nav and audio100Yes
Rear air vents with manual controls50No
Navigation system600Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested305054%
Total Not Requested259046%

Option Package Details
Cadillac STS V8

Preferred Equipment Group 1SF
FeatureValueRequested?
Sport suspension (upgrade)250No
Adaptive shocks - electrical500No
Cooled or ventilated front seats300Yes
Sunroof900Yes
Limited-slip rear differential300No
Rain-sensing wipers100Yes
Xenon HID headlights500Yes
Rear spoiler200Yes
Wood/leather-wrapped steering wheel0No
Bluetooth cell phone link100Yes
Headlight washers50No
235/50VR17 tires200No
255/45VR17 tires200No
Auto-dimming headlights200No
Heated second row seats200No
Universal garage door opener100Yes
Heated steering wheel100No
Interior air filter0Yes
Cargo net40No
Surround sound250Yes
DVD-compatible player0No
Voice control for nav and audio100Yes
Rear air vents with manual controls50No
Navigation system600Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Heated front seats200Yes
CD changer, in-dash200No
Power 4-way lumbar adjuster, driver seat150No
Power 4-way lumbar adjuster, passenger seat150No
Memory system, driver seat200Yes
Polished alloy wheels0No
Wood trim300No
Total Requested355052%
Total Not Requested324048%

Option Package Details
Acura RDX

Advance Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Rain-sensing wipers100Yes
Fog lights125Yes
Obstacle detection, front150No
Obstacle detection, rear250Yes
Auto-dimming driver-side mirror75Yes
Remote start150Yes
Auto-dimming passenger-side mirror75No
Voice control for nav and audio100Yes
HD radio50No
Blind spot warning system200No
Media drive15No
Traffic + travel information25No
Cross-traffic warning, rear100No
Navigation system600Yes
Leather seating surfaces900Yes
Telematics service, such as OnStar200Yes
DVD-Audio-compatible player0No
Power height adjuster, passenger seat100Yes
Power tilt adjuster, passenger seat100Yes
Surround sound250Yes
ELS, 410W, 10 speakers (with subwoofer)350No
Lane keeping assist400No
Radar- or camera-based collision preparation system0No
Lane departure warning200No
Adaptive cruise control, all-speed700No
Automatic braking, low-speed200No
Automatic braking, high-speed or partial200No
Forward collision warning200No
Pedestrian detection50No
Total Requested325053%
Total Not Requested291547%

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 Cadillac models.