Cadillac STS Cadillac STS 2009 Chevrolet Sonic Chevrolet Sonic 2012

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Cadillac STS vs. Chevrolet Sonic 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. Chevrolet Sonic Invoice Comparison

Lowest Total Price: $18,385

Chevrolet Sonic LTZ   
Difference: $30,350

Lowest Total Invoice: $17,441

Chevrolet Sonic LTZ   
Difference: $28,014

Calculate Payments

  Down Payment Interest Rate Term
Model Year2009200920092012
ModelSTSSTSSTSSonic
TrimV6V8STS-VLTZ
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $46,410 $55,910 $80,160 $16,665
Base Invoice $43,393 $52,276 $73,448 $15,832
Temporary spare tire 250      
Engine-block heater 100 100 100 75
Sunroof 1,200   1,200 850
Temporary spare tire 208      
Engine-block heater 83 83 83 66
Sunroof 996   996 748
Options (change) 1,550 100 1,300 925
Options (change) 1,287 83 1,079 814
Destination 775 775 775 795
Gas Tax 0 0 2,100 0
Total Price $48,735 $56,785 $84,335 $18,385
Total Invoice $45,455 $53,134 $77,402 $17,441

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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 Chevrolet Sonic 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. Chevrolet Sonic

Lowest Adjusted Price and Invoice: Chevrolet Sonic LTZ
TrueDelta Adjusted Price Difference: $26,370
TrueDelta Adjusted Invoice Difference: $24,302
Model Year2009200920092012
ModelSTSSTSSTSSonic
TrimV6V8STS-VLTZ
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine302hp V6320hp V8469hp V8138hp I4
TransmissionT6T6T6M5
DrivetrainRWDRWDRWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)?, 8?, 8300, 15?, 6
Tire (rear if not all the same)235/50-17235/50-17255/45-18205/50-17
Total Price$48,735$56,785$84,335$18,385
Adjustments for Features-3,980-4,770-10,0600
Feature-Adjusted Total Price$44,755$52,015$74,275$18,385
Cost Above Minimum$0$7,260$29,520$0
Total Invoice$45,455$53,134$77,402$17,441
Adjustments for Features-3,712-4,463-9,2330
Feature-Adjusted Total Invoice$41,743$48,671$68,169$17,441
Cost Above Minimum$0$6,928$26,426$0

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Features Comparison: Cadillac STS vs. Chevrolet Sonic

Model Year2009200920092012
ModelSTSSTSSTSSonic
TrimV6V8STS-VLTZ
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100$1100 
5-speed manual   $0
RWD$0$0$0 
FWD   $0
Accessories 
Heated steering wheel $100$100 
Proximity key$250$250$250 
Remote start$150$150$150 
Tilt/telescoping steering wheel, manual   $250
Tilt/telescoping steering wheel, power$350$350$350 
Universal garage door opener $100$100 
Brakes, Airbags, and Other Safety 
4-wheel disc brakes$150$150$150 
Blind spot warning system  $200 
Knee airbag, driver   $75
Knee airbag, passenger   $75
Lane departure warning  $200 
Obstacle detection, rear$250$250$250 
Rear side airbags   $300
Rollover sensor   $50
Temporary spare tire$150  $150
Tires, run-flat  $150 
Cargo Management 
Cargo net $40$40 
Rear seat pass-through$100$100$100 
Climate Control 
Automatic air recirculation$100$100$100 
Automatic climate control, front$200$200$200 
Dual-zone climate control$125$125$125 
Heated windshield washer nozzles  $15 
Rain-sensing wipers $175$175 
Rear air vents with manual controls$150$150$150 
Variable intermittent wipers$75  $75
Drivetrain 
Limited-slip rear differential  $300 
Exterior 
Bright-finished exhaust tip(s)$25$25$25 
Laminated front side windows$200$200$200 
Rear spoiler  $200 
Sunroof$900 $900$900
Infotainment 
Aux input   $50
Bluetooth audio streaming   $25
CD changer, in-dash $325$325 
CD player$125  $125
DVD-Audio-compatible player $0  
DVD-compatible player  $0 
MP3-compatible player   $50
Navigation system  $600 
Rear seat audio controls  $25 
Surround sound  $250 
USB port   $25
Voice control for nav and audio  $100 
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75$75$75 
Auto-dimming headlights  $200 
Auto-dimming rearview mirror$150$150$150 
Compass$0$0  
Digital instruments   $0
Head-up display (HUD)  $350 
Headlight washers  $50 
Illuminated visor mirror, driver$50$50$50 
Illuminated visor mirror, passenger$50$50$50 
Turn signals on or near mirrors$25$25$25 
Visor mirror, driver   $10
Visor mirror, passenger   $10
Xenon HID headlights  $500 
Seats and Interior Trim 
Aluminum trim$100   
Center armrest(s), second row$50$50$50 
Door sill trim plates$100$100$100 
Folding second row seats   $300
Heated front seats $200$200$200
Heated second row seats $200$200 
Leather door panel trim  $250 
Leather seating surfaces$900$900$900 
Leather-wrapped steering wheel$150 $150$150
Manual height adjuster, driver seat   $50
Memory system, driver seat $200$200 
Power 4-way lumbar adjuster, driver seat $150$150 
Power 4-way lumbar adjuster, passenger seat $150$150 
Power fore-aft adjuster, driver seat$100$100$100 
Power fore-aft adjuster, passenger seat$100$100$100 
Power height adjuster, driver seat$100$100$100 
Power height adjuster, passenger seat$100$100$100 
Power recliner, driver seat$100$100$100 
Power recliner, passenger seat$100$100$100 
Power tilt adjuster, driver seat$100$100$100 
Power tilt adjuster, passenger seat$100$100$100 
Synthetic leather seating surfaces   $0
Synthetic suede inserts in leather seating surfaces  $0 
Upholstered instrument panel, leather  $1000 
Wood trim $300$300 
Wood/leather-wrapped steering wheel $150  
Suspension, Wheels, and Tires 
Alloy wheels  $350$350
Auto-leveling rear shocks $200$200 
Performance steering system (optional)  $0 
Polished alloy wheels$350$350  
Sport suspension (upgrade)  $0 
Total Value of Features$7,200$7,990$13,280$3,220
Value of Feature Adjustments$3,980$4,770$10,060$0
Value of Feature Adjustments-3,712-4,463-9,2330

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Specifications Comparison: Cadillac STS vs. Chevrolet Sonic

Model Year20092012
ModelSTSSonic
Body4dr Sedan4dr Sedan
Wheelbase116.4 in99.4 in
Length196.7 in173.1 in
Width72.6 in68.3 in
Height57.6 in59.7 in
Curb Weight3,974 lb.2,728 lb.
Fuel Capacity17.0 gal.12.2 gal.
Row 1 Headroom38.7 in38.7 in
Row 1 Shoulder Room58.6 in53.4 in
Row 1 Hip Room54.6 in51.4 in
Row 1 Legroom42.6 in41.8 in
Row 2 Headroom37.9 in37.8 in
Row 2 Shoulder Room57.4 in53.0 in
Row 2 Hip Room55.6 in51.6 in
Row 2 Legroom38.3 in34.6 in
Cargo Volume13.8 ft314.0 ft3

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