Cadillac STS Cadillac STS 2008 Acura RLX Acura RLX 2017

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Cadillac STS vs. Acura RLX 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 RLX Invoice Comparison

Lowest Total Price: $60,900

Acura RLX Sport Hybrid SH-AWD   
Difference: $4,840

Lowest Total Invoice: $56,576

Acura RLX Sport Hybrid SH-AWD   
Difference: $3,714

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082017
ModelSTSRLX
TrimV8Sport Hybrid SH-AWD
Body4dr Sedan4dr Sedan
Base Price $53,275 $59,950
Base Invoice $49,812 $55,626
Preferred Equipment Group 1SG 11,690  
Preferred Equipment Group 1SG 9,703  
Options (change) 11,690 0
Options (change) 9,703 0
Destination 775 950
Total Price $65,740 $60,900
Total Invoice $60,290 $56,576

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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 RLX dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. Acura RLX

Lowest Adjusted Price and Invoice: Acura RLX Sport Hybrid SH-AWD
TrueDelta Adjusted Price Difference: $7,705
TrueDelta Adjusted Invoice Difference: $6,376
Model Year20082017
ModelSTSRLX
TrimV8Sport Hybrid SH-AWD
Body4dr Sedan4dr Sedan
Engine320hp V8310hp V6 H
TransmissionT6S7
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)300, 15588, 14
Tire (rear if not all the same)235/50-18245/40-19
Total Price$65,740$60,900
Adjustments for Features0-2,865
Feature-Adjusted Total Price$65,740$58,035
Total Invoice$60,290$56,576
Adjustments for Features0-2,662
Feature-Adjusted Total Invoice$60,290$53,914

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Features Comparison: Cadillac STS vs. Acura RLX

Model Year20082017
ModelSTSRLX
TrimV8Sport Hybrid SH-AWD
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
7-speed automated manual $1200
RWD$0 
AWD $1700
Accessories 
Active noise reduction $0
Adaptive cruise control$600 
Adaptive cruise control, all-speed $850
Eco accelerator $100
Heated steering wheel$100 
Remote app $25
Remote start$150 
Remote window/roof operation $15
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
Cross-traffic warning, rear $100
Forward collision warning $200
Knee airbag, driver $75
Lane keeping assist $400
Obstacle detection, rear$250 
Pedestrian detection $50
Radar- or camera-based collision preparation system $0
Rearview camera $200
Rollover sensor $50
Temporary spare tire$150 
Torque vectoring, brake-based $100
Wide-view rear camera $0
Cargo Management 
Cargo net$40 
Climate Control 
Rear air vents with automatic controls $250
Rear air vents with manual controls$150 
Drivetrain 
Limited-slip rear differential$300 
Torque-vectoring, dual-electric-motor-based, rear $500
Exterior 
Bright-finished exhaust tip(s)$25 
Laminated rear side windows $100
Rear spoiler$200 
Infotainment 
App support $0
Aux input $50
Bluetooth audio streaming $25
CD changer, in-dash$325 
CD player $125
DVD-Audio-compatible player $0
DVD-compatible player$0 
HD radio $50
Media drive $15
MP3-compatible player $50
Rear seat audio controls$25 
SMS text-to-speech reader $25
Telematics service, such as OnStar $200
Telematics service, such as OnStar, with navigation$225 
Traffic + travel information $25
USB port $25
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75 
Auto-dimming headlights$200 
Headlight washers$50 
Interior ambient lighting $150
LED headlights $1000
Mirror tilt-down in reverse $25
Power-folding mirrors $50
Spotter mirror(s) $50
Xenon HID headlights$500 
Seats and Interior Trim 
Cooled or ventilated front seats$300 
Heated second row seats$200 
Leather door panel trim $250
Leather-wrapped steering wheel $150
Wood trim$300 
Wood/leather-wrapped steering wheel$150 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Adaptive dampers - mechanical $100
Alloy wheels $350
Performance steering system (optional)$0 
Polished alloy wheels$350 
Sport suspension (upgrade)$0 
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$6,265$9,130
Value of Feature Adjustments$0$2,865
Value of Feature Adjustments0-2,662

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Specifications Comparison: Cadillac STS vs. Acura RLX

Model Year20082017
ModelSTSRLX
Body4dr Sedan4dr Sedan
Wheelbase116.4 in112.2 in
Length196.7 in196.1 in
Width72.6 in74.4 in
Height57.6 in57.7 in
Curb Weight3,974 lb.3,970 lb.
Fuel Capacity17.0 gal.18.5 gal.
Row 1 Headroom38.7 in37.6 in
Row 1 Shoulder Room58.6 in59.6 in
Row 1 Hip Room54.6 in55.9 in
Row 1 Legroom42.6 in42.3 in
Row 2 Headroom37.9 in36.9 in
Row 2 Shoulder Room57.4 in57.0 in
Row 2 Hip Room55.6 in54.5 in
Row 2 Legroom38.3 in38.8 in
Cargo Volume13.8 ft315.3 ft3

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Option Package Details
Cadillac STS V8

Preferred Equipment Group 1SG
FeatureValueRequested?
Adaptive shocks - electrical500No
Cooled or ventilated front seats300No
Sunroof900Yes
Adaptive cruise control450Yes
235/50WR18 tires200No
255/45WR18 tires200No
Xenon HID headlights500Yes
Headlight washers50No
Auto-dimming headlights200No
Head-up display (HUD)350Yes
Lane departure warning system200Yes
Blind spot warning system200Yes
Sport suspension (upgrade)250No
Performance braking system (optional)250No
Limited-slip rear differential300No
Rear spoiler200No
Additional engine cooling0No
Power steering cooler0No
Performance steering system (optional)250No
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 Requested365054%
Total Not Requested307546%

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