Lexus IS Lexus IS 2015 Cadillac STS Cadillac STS 2006

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Lexus IS vs. Cadillac STS 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.

Lexus IS vs. Cadillac STS Invoice Comparison

Lowest Total Price: $43,315

Lexus IS 250   
Difference: $15,665

Lowest Total Invoice: $40,302

Lexus IS 250   
Difference: $13,288

Calculate Payments

  Down Payment Interest Rate Term
Model Year201520152006
ModelISISSTS
Trim250350V8
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $36,550 $40,065 $47,520
Base Invoice $33,994 $37,261 $43,956
Premium Package 1,050    
Navigation System / Mark Levinson Pkg. 2,995 2,995  
All Weather Package 360 360  
225/40YR18 935    
Obstacle detection, rear 500 500  
F Sport Package   3,740  
Preferred Equipment Group 1SF     10,740
Premium Package 968    
Navigation System / Mark Levinson Pkg. 2,764 2,764  
All Weather Package 332 332  
225/40YR18 859    
Obstacle detection, rear 460 460  
F Sport Package   3,441  
Preferred Equipment Group 1SF     8,914
Options (change) 5,840 7,595 10,740
Options (change) 5,383 6,997 8,914
Destination 925 925 720
Total Price $43,315 $48,585 $58,980
Total Invoice $40,302 $45,183 $53,590

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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 Lexus IS dealer quotes or Cadillac STS 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: Lexus IS vs. Cadillac STS

Lowest Adjusted Price and Invoice: Lexus IS 250
TrueDelta Adjusted Price Difference: $14,030
TrueDelta Adjusted Invoice Difference: $11,802
Model Year201520152006
ModelISISSTS
Trim250350V8
Body4dr Sedan4dr Sedan4dr Sedan
Engine204hp V6306hp V6320hp V8
TransmissionT6T8T5
DrivetrainRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)835, 15835, 15300, 15
Tire (rear if not all the same)225/40-18225/40-18235/50-17
Total Price$43,315$48,585$58,980
Adjustments for Features0-825-1,635
Feature-Adjusted Total Price$43,315$47,760$57,345
Cost Above Minimum$0$4,445$0
Total Invoice$40,302$45,183$53,590
Adjustments for Features0-767-1,486
Feature-Adjusted Total Invoice$40,302$44,416$52,104
Cost Above Minimum$0$4,114$0

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Features Comparison: Lexus IS vs. Cadillac STS

Model Year201520152006
ModelISISSTS
Trim250350V8
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100  
8-speed manually-shiftable automatic $1300 
5-speed manually-shiftable automatic  $1000
RWD$0$0$0
Accessories 
Remote app$25$25 
Remote start  $150
Remote window/roof operation$15$15 
Tilt/telescoping steering wheel, manual$250$250 
Tilt/telescoping steering wheel, power  $350
Brakes, Airbags, and Other Safety 
High performance brake pads (optional) $0 
Knee airbag, driver$75$75 
Knee airbag, passenger$75$75 
Obstacle detection, front$150$150 
Rear side airbags$300$300 
Rearview camera$200$200 
Cargo Management 
Cargo net  $40
Overhead sunglass holder$25$25 
Rear seat pass-through  $100
Climate Control 
Rain-sensing wipers  $175
Rear air vents$100$100 
Rear air vents with manual controls  $150
Variable intermittent wipers$75$75 
Water-repellent front-door glass$15$15 
Drivetrain 
Limited-slip rear differential  $300
Exterior 
Laminated front side windows  $200
Rear spoiler  $200
Infotainment 
App support$0$0 
Aux input$50$50 
Bluetooth audio streaming$25$25 
CD changer, in-dash  $325
CD player$125$125 
HD radio$50$50 
MP3-compatible player$50$50 
Satellite radio$200$200 
SMS text-to-speech reader$25$25 
Traffic + travel information$25$25 
Instruments, Lights, and Mirrors 
Analog clock$25$25 
Auto-dimming driver-side mirror  $75
Auto-dimming headlights  $200
Fog lights$125 $125
Large color reconfigurable instrument cluster display $250 
LED headlights$1000$1000 
Xenon HID headlights  $500
Seats and Interior Trim 
Folding second row seats$300$300 
Heated second row seats  $200
Leather seating surfaces  $900
Leather-wrapped steering wheel$150$150 
Memory system, driver seat  $200
Power 4-way lumbar adjuster, driver seat  $150
Power 4-way lumbar adjuster, passenger seat  $150
Power lumbar adjuster, driver seat$100$100 
Synthetic leather seating surfaces$0$0 
Upholstered instrument cluster hood$50$50 
Wood trim  $300
Wood/leather-wrapped steering wheel  $150
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500$500
Alloy wheels$350$350 
Auto-leveling rear shocks  $200
Electronic systems calibration selector$200$200 
Polished alloy wheels  $350
Sport suspension (upgrade) $0$0
Transmission 
Steering-wheel-mounted transmission controls$100$100 
Total Value of Features$5,355$6,180$6,990
Value of Feature Adjustments$0$825$1,635
Value of Feature Adjustments0-767-1,486

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Specifications Comparison: Lexus IS vs. Cadillac STS

Model Year20152006
ModelISSTS
Body4dr Sedan4dr Sedan
Wheelbase110.2 in116.4 in
Length183.7 in196.3 in
Width71.3 in72.6 in
Height56.3 in57.6 in
Curb Weight3,462 lb.3,961 lb.
Fuel Capacity17.4 gal.17.0 gal.
Row 1 Headroom38.2 in38.7 in
Row 1 Shoulder Room55.9 in58.6 in
Row 1 Hip Room54.3 in54.6 in
Row 1 Legroom44.8 in42.6 in
Row 2 Headroom36.9 in37.9 in
Row 2 Shoulder Room53.4 in57.4 in
Row 2 Hip Room54.0 in55.6 in
Row 2 Legroom32.2 in38.3 in
Cargo Volume10.8 ft313.8 ft3

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Option Package Details
Lexus IS 250

Premium Package
FeatureValueRequested?
Heated front seats200Yes
Cooled or ventilated front seats300Yes
LED headlights500No
Total Requested50050%
Total Not Requested50050%
Navigation System / Mark Levinson Pkg.
FeatureValueRequested?
Surround sound250Yes
DVD-compatible player0Yes
Mark Levinson, 835W, 15 speakers (with subwoofer)350No
Navigation system600Yes
Rearview camera200No
Voice control for nav and audio75Yes
SMS text-to-speech reader25No
Speed limit information0No
App support0No
Remote app25No
Total Requested92561%
Total Not Requested60039%
All Weather Package
FeatureValueRequested?
Heated steering wheel100Yes
Headlight washers50Yes
Total Requested150100%
Total Not Requested00%

Option Package Details
Lexus IS 350

F Sport Package
FeatureValueRequested?
Adaptive dampers - electrical500Yes
Sport suspension (upgrade)250Yes
Special exterior trim0No
Special interior trim0No
Metal pedals75No
Dark-colored headliner (optional)0No
High performance brake pads (optional)0No
Large color reconfigurable instrument cluster display250No
Front sport buckets100No
255/35YR18 tires200No
225/40YR18 tires200No
Heated front seats200Yes
Cooled or ventilated front seats300Yes
LED headlights500No
Total Requested125049%
Total Not Requested132551%
Navigation System / Mark Levinson Pkg.
FeatureValueRequested?
Surround sound250Yes
DVD-compatible player0Yes
Mark Levinson, 835W, 15 speakers (with subwoofer)350No
Navigation system600Yes
Rearview camera200No
Voice control for nav and audio75Yes
SMS text-to-speech reader25No
Speed limit information0No
App support0No
Remote app25No
Total Requested92561%
Total Not Requested60039%
All Weather Package
FeatureValueRequested?
Heated steering wheel100Yes
Headlight washers50Yes
Total Requested150100%
Total Not Requested00%

Option Package Details
Cadillac STS V8

Preferred Equipment Group 1SF
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Adaptive shocks - electrical500Yes
Cooled or ventilated front seats300Yes
Sunroof900Yes
Limited-slip rear differential300No
Rain-sensing wipers100No
Xenon HID headlights500Yes
Rear spoiler200No
Wood/leather-wrapped steering wheel0No
Bluetooth cell phone link100Yes
Headlight washers50Yes
235/50VR17 tires200No
255/45VR17 tires200No
Auto-dimming headlights200No
Cargo net40No
Surround sound250Yes
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Rear air vents with manual controls50No
Navigation system600Yes
Heated second row seats200No
Universal garage door opener100Yes
Heated steering wheel100Yes
Interior air filter0Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Memory system, driver seat200No
Polished alloy wheels0No
Wood trim300No
Heated front seats200Yes
CD changer, in-dash200No
Power 4-way lumbar adjuster, driver seat150No
Power 4-way lumbar adjuster, passenger seat150No
Total Requested395058%
Total Not Requested284042%

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