Cadillac STS Cadillac STS 2008 Acura RL Acura RL 2006

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Cadillac STS vs. Acura RL 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 RL Invoice Comparison

Lowest Total Price: $49,915

Acura RL   
Difference: $4,435

Lowest Total Invoice: $44,527

Acura RL   
Difference: $5,312

Calculate Payments

  Down Payment Interest Rate Term
Model Year2008200820082006
ModelSTSSTSSTSRL
TrimV6V8STS-VBase
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $43,775 $53,275 $77,575 $49,300
Base Invoice $40,930 $49,812 $71,083 $43,912
Preferred Equipment Group 1SC 8,600      
Sunroof 1,200   1,200  
Premium Luxury Collection   3,200    
Preferred Equipment Group 1SC 7,138      
Sunroof 996   996  
Premium Luxury Collection   2,656    
Options (change) 9,800 3,200 1,200 0
Options (change) 8,134 2,656 996 0
Destination 775 775 775 615
Gas Tax 0 0 2,100 0
Total Price $54,350 $57,250 $81,650 $49,915
Total Invoice $49,839 $53,243 $74,954 $44,527

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

Dealer Price Quotes

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Request free, no-obligation Cadillac STS dealer quotes or Acura RL dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. Acura RL

Lowest Adjusted Price and Invoice: Acura RL
TrueDelta Adjusted Price Difference: $4,600
TrueDelta Adjusted Invoice Difference: $5,421
Model Year2008200820082006
ModelSTSSTSSTSRL
TrimV6V8STS-VBase
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine302hp V6320hp V8469hp V8290hp V6
TransmissionT6T6T6T5
DrivetrainRWDRWDRWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15300, 15300, 15260, 10
Tire (rear if not all the same)235/50-18235/50-17255/45-18245/50-17
Total Price$54,350$57,250$81,650$49,915
Adjustments for Features-1,5500-3,165-1,715
Feature-Adjusted Total Price$52,800$57,250$78,485$48,200
Cost Above Minimum$0$4,450$25,685$0
Total Invoice$49,839$53,243$74,954$44,527
Adjustments for Features-1,4210-2,905-1,530
Feature-Adjusted Total Invoice$48,418$53,243$72,049$42,997
Cost Above Minimum$0$4,825$23,631$0

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Features Comparison: Cadillac STS vs. Acura RL

Model Year2008200820082006
ModelSTSSTSSTSRL
TrimV6V8STS-VBase
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100$1100 
5-speed manually-shiftable automatic   $1000
RWD$0$0$0 
AWD   $1700
Accessories 
Active noise reduction   $0
Heated steering wheel$100$100$100 
Remote start$150$150$150 
Remote window/roof operation   $15
Sunshade, rear, power   $225
Sunshades, second row   $125
Brakes, Airbags, and Other Safety 
Blind spot warning system  $200 
Lane departure warning  $200 
Obstacle detection, rear$250$250$250 
Tires, run-flat  $150 
Climate Control 
Heated windshield washer nozzles  $15 
Rain-sensing wipers$175$175$175 
Rear air vents   $100
Rear air vents with manual controls$150$150$150 
Variable intermittent wipers   $75
Drivetrain 
Active rear differential   $500
Limited-slip rear differential$300 $300 
Exterior 
Bodyside moldings   $75
Laminated front side windows$200$200$200 
Rear spoiler$200 $200 
Infotainment 
DVD-compatible player$0$0$0 
Rear seat audio controls$25$25$25 
Telematics service, such as OnStar   $200
Telematics service, such as OnStar, with navigation$225$225$225 
Traffic information   $25
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75$75$75 
Auto-dimming headlights$200 $200 
Compass $0  
Head-up display (HUD)  $350 
Headlight washers$50 $50 
Mirror tilt-down in reverse   $25
Steering-linked headlights   $150
Xenon HID headlights$500 $500$500
Seats and Interior Trim 
Cooled or ventilated front 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 height adjuster, passenger seat$100$100$100 
Power lumbar adjuster, driver seat   $100
Power lumbar adjuster, passenger seat   $100
Power tilt adjuster, passenger seat$100$100$100 
Power-folding headrests, second row seats   $50
Synthetic suede inserts in leather seating surfaces  $0 
Upholstered instrument panel, leather  $1000 
Wood/leather-wrapped steering wheel$150$150  
Suspension, Wheels, and Tires 
Alloy wheels  $350$350
Auto-leveling rear shocks$200$200$200 
Performance steering system (optional)$0 $0 
Polished alloy wheels$350$350  
Sport suspension (upgrade)$0 $0 
Transmission 
Steering-wheel-mounted transmission controls   $100
Total Value of Features$5,400$3,850$7,015$5,565
Value of Feature Adjustments$1,550$0$3,165$1,715
Value of Feature Adjustments-1,4210-2,905-1,530

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Specifications Comparison: Cadillac STS vs. Acura RL

Model Year20082006
ModelSTSRL
Body4dr Sedan4dr Sedan
Wheelbase116.4 in110.2 in
Length196.7 in193.6 in
Width72.6 in72.2 in
Height57.6 in57.1 in
Curb Weight3,974 lb.4,013 lb.
Fuel Capacity17.0 gal.19.4 gal.
Row 1 Headroom38.7 in38.5 in
Row 1 Shoulder Room58.6 in58.5 in
Row 1 Hip Room54.6 in55.1 in
Row 1 Legroom42.6 in42.4 in
Row 2 Headroom37.9 in37.2 in
Row 2 Shoulder Room57.4 in56.1 in
Row 2 Hip Room55.6 in54.0 in
Row 2 Legroom38.3 in36.3 in
Cargo Volume13.8 ft313.1 ft3

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Option Package Details
Cadillac STS V6

Preferred Equipment Group 1SC
FeatureValueRequested?
Xenon HID headlights500Yes
Auto-leveling rear shocks200No
Headlight washers50No
235/50WR18 tires200No
Auto-dimming headlights200No
255/45WR18 tires200No
Navigation system600Yes
Bluetooth cell phone link100Yes
Surround sound250Yes
DVD-compatible player0No
Rear seat audio controls25No
Voice control for nav and audio100Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Cooled or ventilated front seats300No
Wood/leather-wrapped steering wheel0No
Performance steering system (optional)250No
Sport suspension (upgrade)250No
Performance braking system (optional)250No
Limited-slip rear differential300Yes
Rear spoiler200No
Additional engine cooling0No
Power steering cooler0No
Rain-sensing wipers100No
Memory system, driver seat200Yes
Heated steering wheel100No
Cargo net40Yes
Wood trim300Yes
Heated front seats200Yes
Heated second row seats200No
CD changer, in-dash200Yes
Power 4-way lumbar adjuster, driver seat150No
Power 4-way lumbar adjuster, passenger seat150No
Universal garage door opener100Yes
Total Requested289048%
Total Not Requested317552%

Option Package Details
Cadillac STS V8

Premium Luxury Collection
FeatureValueRequested?
Sunroof900Yes
Navigation system600Yes
Bluetooth cell phone link100Yes
Surround sound250Yes
DVD-compatible player0No
Rear seat audio controls25No
Voice control for nav and audio100Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested195084%
Total Not Requested37516%

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