2006 Cadillac STS
3 trims · Sedan
Starting MSRP
$41,020 – $74,270
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Pricing
How much should you pay for the Cadillac STS? Select a trim to update purchase and lease estimates.
MSRP by trim
Select a trim to update the payment estimates. MSRP is for each trim's base configuration and excludes destination, taxes, and options.
Purchase information
Based on V6
Total price (V6 MSRP)
$41,020
Typical monthly
$812/mo
Avg. APR
7.00%
60-month loan estimate for good credit (rates as of 2026-08-23). Not a credit offer; actual APR varies by lender, credit, and dealer.
Open loan calculatorCompare 2006 Cadillac STS trims
V6
- MSRP
- $41,020
- Fuel economy (city/hwy)
- 16/25
- Horsepower
- 255 hp
- Torque
- 252 lb-ft
- Engine
- 3.6L V6 gas
- Seating
- 5
- Drivetrain
- RWD
- Cargo (cu ft)
- 13.8
- Max towing
- 1,000 lbs
V8
- MSRP
- $47,520
- Fuel economy (city/hwy)
- 15/24
- Horsepower
- 320 hp
- Torque
- 315 lb-ft
- Engine
- 4.6L V8 gas
- Seating
- 5
- Drivetrain
- RWD
- Cargo (cu ft)
- 13.8
- Max towing
- 1,000 lbs
Base
- MSRP
- $74,270
- Fuel economy (city/hwy)
- 12/19
- Horsepower
- 469 hp
- Torque
- 439 lb-ft
- Engine
- 4.4L V8 gas
- Seating
- 5
- Drivetrain
- RWD
- Cargo (cu ft)
- 13.8
- Max towing
- —
| Spec | V6 | V8 | Base |
|---|---|---|---|
| MSRP | $41,020 | $47,520 | $74,270 |
| Fuel economy (city/hwy) | 16/25 | 15/24 | 12/19 |
| Horsepower | 255 hp | 320 hp | 469 hp |
| Torque | 252 lb-ft | 315 lb-ft | 439 lb-ft |
| Engine | 3.6L V6 gas | 4.6L V8 gas | 4.4L V8 gas |
| Seating | 5 | 5 | 5 |
| Drivetrain | RWD | RWD | RWD |
| Cargo (cu ft) | 13.8 | 13.8 | 13.8 |
| Max towing | 1,000 lbs | 1,000 lbs | — |
Manufacturer specifications by trim and drivetrain. Same trim names with different MSRPs are distinct FWD/AWD (or other drivetrain) configurations from the catalog. MSRP excludes destination fees, taxes, and dealer-installed options.
Full specifications
Engine & drivetrain
- Engine type
- V6gasV8gasBasegas
- Fuel type
- V6regular unleadedV8premium unleaded (required)Basepremium unleaded (required)
- Cylinders
- V6V6V8V8BaseV8
- Displacement
- V63.6 LV84.6 LBase4.4 L
- Horsepower
- V6255 hpV8320 hpBase469 hp
- Torque
- V6252 lb-ftV8315 lb-ftBase439 lb-ft
- Transmission
- V65-speed shiftable automaticV85-speed shiftable automaticBase6-speed shiftable automatic
- Drivetrain
- V6rear wheel driveV8rear wheel driveBaserear wheel drive
Dimensions
- Body type
- V6SedanV8SedanBaseSedan
- Doors
- V64V84Base4
- Seating
- V65V85Base5
- Length
- V6196.3 inV8196.3 inBase197.6 in
- Width
- V672.6 inV872.6 inBase72.6 in
- Height
- V657.6 inV857.6 inBase58.2 in
- Wheelbase
- V6116.4 inV8116.4 inBase116.4 in
Capacity & weight
- Cargo capacity
- V613.8 cu ftV813.8 cu ftBase13.8 cu ft
- Max cargo capacity
- V613.8 cu ftV813.8 cu ftBase13.8 cu ft
- Max towing
- V61,000 lbsV81,000 lbsBase—
- Curb weight
- V63,960 lbsV84,026 lbsBase4,295 lbs
- Fuel tank
- V617 galV817 galBase17.5 gal
Fuel economy & EV
- Combined MPG
- V619V818Base14
- City MPG
- V616V815Base12
- Highway MPG
- V625V824Base19
| Spec | V6 | V8 | Base |
|---|---|---|---|
| Engine & drivetrain | |||
| Engine type | gas | gas | gas |
| Fuel type | regular unleaded | premium unleaded (required) | premium unleaded (required) |
| Cylinders | V6 | V8 | V8 |
| Displacement | 3.6 L | 4.6 L | 4.4 L |
| Horsepower | 255 hp | 320 hp | 469 hp |
| Torque | 252 lb-ft | 315 lb-ft | 439 lb-ft |
| Transmission | 5-speed shiftable automatic | 5-speed shiftable automatic | 6-speed shiftable automatic |
| Drivetrain | rear wheel drive | rear wheel drive | rear wheel drive |
| Dimensions | |||
| Body type | Sedan | Sedan | Sedan |
| Doors | 4 | 4 | 4 |
| Seating | 5 | 5 | 5 |
| Length | 196.3 in | 196.3 in | 197.6 in |
| Width | 72.6 in | 72.6 in | 72.6 in |
| Height | 57.6 in | 57.6 in | 58.2 in |
| Wheelbase | 116.4 in | 116.4 in | 116.4 in |
| Capacity & weight | |||
| Cargo capacity | 13.8 cu ft | 13.8 cu ft | 13.8 cu ft |
| Max cargo capacity | 13.8 cu ft | 13.8 cu ft | 13.8 cu ft |
| Max towing | 1,000 lbs | 1,000 lbs | — |
| Curb weight | 3,960 lbs | 4,026 lbs | 4,295 lbs |
| Fuel tank | 17 gal | 17 gal | 17.5 gal |
| Fuel economy & EV | |||
| Combined MPG | 19 | 18 | 14 |
| City MPG | 16 | 15 | 12 |
| Highway MPG | 25 | 24 | 19 |
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2006 Cadillac STS FAQ
- How much does the 2006 Cadillac STS cost?
- The 2006 Cadillac STS has a starting MSRP of $41,020, ranging up to $74,270 for the top trim. Trim pricing includes V6 from $41,020; V8 from $47,520; Base from $74,270.
- What is the fuel economy of the 2006 Cadillac STS?
- The 2006 Cadillac STS achieves up to 19 MPG combined (EPA estimate), depending on trim and configuration.
- How much cargo space does the 2006 Cadillac STS have?
- The 2006 Cadillac STS offers up to 13.8 cubic feet of cargo capacity, depending on trim and seating configuration.
- How much can the 2006 Cadillac STS tow?
- The 2006 Cadillac STS has a maximum towing capacity of up to 1,000 pounds, depending on trim and equipment.
- How many trims does the 2006 Cadillac STS come in?
- The 2006 Cadillac STS is available in 3 trims across Sedan body styles with rear wheel drive.