Cadillac STS
2008–2011 model years · Generation introduced 2005
Compare the years. Keep the details.
Compare model years ↓
- Available years
- 2008–2011
- Yearly records
- 4
- Reported market values
- $3,350–$3,425
The overview
The STS started out as an up-level trim of the midsized Seville, with a strong 4.6-liter V8, traction control, and an active suspension system. The STS accelerated faster than many of the performance cars of its day and even carved relatively crisp corners. However, in exchange for the better than average handling, it didn't ride particularly well. For 2005, Cadillac renamed the Seville the STS and switched to rear- or all-wheel drive, turning it into a genuinely competitive sports sedan. Power came from a 255-hp V6 or an ultra smooth 320-hp V8. The ride is firm but supple. The car is fun to drive and handles well, but rear-seat room is relatively tight and the interior doesn't measure up. The STS-V is a quicker supercharged version. Model year 2008 brought a 3.6-liter V6 as well as a few interior updates and 2011 was the final year.
Generation summary from Consumer Reports. Year-specific figures appear below; missing values mean unavailable, not zero.
Compare the years
Each row keeps its own source data.
| Model year | Market value | Reliability | Owner rating | EPA combined |
|---|---|---|---|---|
| 2011 ↗ sedan 3.6-liter V6 (302 hp) (Regular Gasoline) Automatic 6-speed | $3,425 | Not rated | Not rated | 20 MPG |
| 2010 ↗ sedan RWD 3.6-liter V6 (302 hp) (Regular Gasoline) Automatic 6-speed | $3,388 | Not rated | Not rated | 20 MPG |
| 2009 ↗ sedan 3.6-liter V6 (302 hp) (Regular Gasoline) Automatic 6-speed | $3,400 | Not rated | Not rated | 20 MPG |
| 2008 ↗ Luxury sedan RWD 3.6-liter V6 (302 hp) (Regular Gasoline) Automatic 6-speed | $3,350 | Not rated | Not rated | 20 MPG |
Values depend on trim and condition. Ratings are source-reported; road-test results may describe a tested configuration.
Year by year
2011 model
sedan 3.6-liter V6 (302 hp) (Regular Gasoline) Automatic 6-speed · Conventional · Used
Find 2011 listings ↗ Specifications
Overview
- Powertrain
- Conventional
- Body style
- sedan
- Drive type
- RWD
- Transmission
- Automatic
- Category
- Ultra luxury cars
- Generation began
- 2005
Pricing
- Current retail median
- $3,425
- Retail value range
- $3,425 - $3,425
- Original MSRP range
- $47,280 - $56,380
- Trade-in range
- $910 - $910
Ratings
- Road test score
- 77/100
Fuel economy
- EPA city
- 17 MPG
- EPA highway
- 26 MPG
- EPA combined
- 20 MPG
- Tested city
- 12 MPG
- Tested highway
- 28 MPG
- Tested overall
- 18 MPG
- Annual fuel cost
- $2,660
- Cruising range
- 315 miles
Road tests
- 0-30 mph
- 2.5 sec
- 0-60 mph
- 6.4 sec
- 60-0 mph braking
- 133 ft
- Avoidance speed
- 53 mph
- Test status
- Test Completed
Dimensions
- Length
- 196 in
- Width
- 73 in
- Height
- 58 in
- Wheelbase
- 116 in
- Weight
- 4,000 lb
- Maximum load
- 890 lb
- Towing capacity
- 1,000 lb
Interior
- Seating
- 5 people
- Front head room
- 3 in
- Front leg room
- 42 in
- Rear head room
- 2 in
- Rear leg room
- 27 in
- Luggage
- 2+4+0
Environmental impact
- Air pollution score
- 5/10
- Greenhouse gas score
- 4/10
- SmartWay
- No
Vehicle ID: 5768 First published: June 20, 2020 Updated: September 11, 2026
Values may vary by trim, options, location, and market conditions.
2010 model
sedan RWD 3.6-liter V6 (302 hp) (Regular Gasoline) Automatic 6-speed · Conventional · Used
Find 2010 listings ↗
Specifications
Overview
- Powertrain
- Conventional
- Body style
- sedan
- Drive type
- AWD
- Transmission
- Automatic
- Category
- Ultra luxury cars
- Generation began
- 2005
Pricing
- Current retail median
- $3,388
- Retail value range
- $3,325 - $3,450
- Original MSRP range
- $46,845 - $68,785
- Trade-in range
- $830 - $950
Ratings
- Road test score
- 77/100
Fuel economy
- EPA city
- 17 MPG
- EPA highway
- 26 MPG
- EPA combined
- 20 MPG
- Tested city
- 12 MPG
- Tested highway
- 28 MPG
- Tested overall
- 18 MPG
- Annual fuel cost
- $2,660
- Cruising range
- 315 miles
Road tests
- 0-30 mph
- 2.5 sec
- 0-60 mph
- 6.4 sec
- 60-0 mph braking
- 133 ft
- Avoidance speed
- 53 mph
- Test status
- Test Completed
Dimensions
- Length
- 196 in
- Width
- 73 in
- Height
- 58 in
- Wheelbase
- 116 in
- Weight
- 4,000 lb
- Maximum load
- 890 lb
- Towing capacity
- 1,000 lb
Interior
- Seating
- 5 people
- Front head room
- 3 in
- Front leg room
- 42 in
- Rear head room
- 2 in
- Rear leg room
- 27 in
- Luggage
- 2+4+0
Environmental impact
- Air pollution score
- 6/10
- Greenhouse gas score
- 5/10
- SmartWay
- No
Vehicle ID: 7493 First published: June 20, 2020 Updated: September 11, 2026
Values may vary by trim, options, location, and market conditions.
2009 model
sedan 3.6-liter V6 (302 hp) (Regular Gasoline) Automatic 6-speed · Conventional · Used
Find 2009 listings ↗
Specifications
Overview
- Powertrain
- Conventional
- Body style
- sedan
- Drive type
- AWD
- Transmission
- Automatic
- Category
- Ultra luxury cars
- Generation began
- 2005
Pricing
- Current retail median
- $3,400
- Retail value range
- $3,300 - $6,900
- Original MSRP range
- $46,845 - $81,795
- Trade-in range
- $805 - $3,770
Ratings
- Road test score
- 77/100
Fuel economy
- EPA city
- 17 MPG
- EPA highway
- 26 MPG
- EPA combined
- 20 MPG
- Tested city
- 12 MPG
- Tested highway
- 28 MPG
- Tested overall
- 18 MPG
- Annual fuel cost
- $2,660
- Cruising range
- 315 miles
Road tests
- 0-30 mph
- 2.5 sec
- 0-60 mph
- 6.4 sec
- 60-0 mph braking
- 133 ft
- Avoidance speed
- 53 mph
- Test status
- Test Completed
Dimensions
- Length
- 196 in
- Width
- 73 in
- Height
- 58 in
- Wheelbase
- 116 in
- Weight
- 4,000 lb
- Maximum load
- 890 lb
- Towing capacity
- 1,000 lb
Interior
- Seating
- 5 people
- Front head room
- 3 in
- Front leg room
- 42 in
- Rear head room
- 2 in
- Rear leg room
- 27 in
- Luggage
- 2+4+0
Vehicle ID: 7636 First published: June 20, 2020 Updated: September 11, 2026
Values may vary by trim, options, location, and market conditions.
2008 model
Luxury sedan RWD 3.6-liter V6 (302 hp) (Regular Gasoline) Automatic 6-speed · Conventional · Used
Find 2008 listings ↗
Specifications
Overview
- Powertrain
- Conventional
- Body style
- sedan
- Drive type
- AWD
- Transmission
- Automatic
- Category
- Ultra luxury cars
- Generation began
- 2005
Pricing
- Current retail median
- $3,350
- Retail value range
- $3,225 - $6,200
- Original MSRP range
- $43,775 - $78,775
- Trade-in range
- $750 - $3,115
Ratings
- Road test score
- 77/100
Fuel economy
- EPA city
- 17 MPG
- EPA highway
- 26 MPG
- EPA combined
- 20 MPG
- Tested city
- 12 MPG
- Tested highway
- 28 MPG
- Tested overall
- 18 MPG
- Annual fuel cost
- $2,660
- Cruising range
- 315 miles
Road tests
- 0-30 mph
- 2.5 sec
- 0-60 mph
- 6.4 sec
- 60-0 mph braking
- 133 ft
- Avoidance speed
- 53 mph
- Test status
- Test Completed
Dimensions
- Length
- 196 in
- Width
- 73 in
- Height
- 58 in
- Wheelbase
- 116 in
- Weight
- 4,000 lb
- Maximum load
- 890 lb
- Towing capacity
- 1,000 lb
Interior
- Seating
- 5 people
- Front head room
- 3 in
- Front leg room
- 42 in
- Rear head room
- 2 in
- Rear leg room
- 27 in
- Luggage
- 2+4+0
Vehicle ID: 2357 First published: June 20, 2020 Updated: September 11, 2026
Values may vary by trim, options, location, and market conditions.
Behind the data
Latest source update: September 11, 2026
Vehicle summaries, specifications, pricing and ratings come from Consumer Reports vehicle records. Auto Guide groups these records by model and reported generation start year.
Available years are listed explicitly. Gaps do not imply that a model was discontinued. Prices are source estimates, not live offers. No first-hand road test by Auto Guide is claimed.
