Used 2008 Cadillac STS
2008 Cadillac STS Review
By KBB Editors
Updated December 23, 2019
Pros
Head-over-heels in love with the original CTS-V’s good looks, but crave the technical wizardry and opulent interiors associated with BMW and Mercedes-Benz vehicles? If you can swing the higher price tag, the 2008 Cadillac STS-V can satisfy both demands.
Cons
In the eyes of many status seekers, BMW’s blue and white propeller badge easily trumps Cadillac’s wreath and crest. If image is more important than performance, the STS-V’s impressive statistics may not be enough to overcome its Detroit background and reputation.
What's New?
New features include Lane Departure Warning and Side Blind Zone Alert. A new 100,000-mile warranty now covers all Cadillacs.
The verdict is in on the 2008 Cadillac STS-V: It’s an unmitigated success. Some had doubts a Cadillac could ever play in the same arena as the famed M cars from BMW, the AMG offerings of Mercedes-Benz or the R models from Jaguar, but the STS-V has left even its harshest critics slack-jawed. Why? Here’s part of the reason: A 469-horsepower supercharged V8 teamed to a super-taut chassis and a fluid body with razor-sharp good looks. The STS-V has the acceleration (zero-to-60 miles per hour in less than five seconds), braking and handling to place it among the world’s best, making it easy for proud American driving enthusiasts to get behind the wheel. It also includes all the luxury one would expect from America’s quintessential luxury car manufacturer.
2008 Cadillac STS Pricing
2008 Cadillac STS pricing starts at $2,750 for the STS Sedan 4D, which had a starting MSRP of $43,135 when new. The range-topping 2008 STS STS-V Sedan 4D starts at $8,550 today, originally priced from $79,000.
Original MSRP | KBB Fair Purchase Price (national avg.) | |||
|---|---|---|---|---|
$43,135 | $2,750 | |||
$79,000 | $8,550 |
The Kelley Blue Book Fair Purchase Price for any individual used vehicle can vary greatly according to mileage, condition, location, and other factors. The prices here reflect what buyers are currently paying for used 2008 Cadillac STS models in typical condition when purchasing from a dealership. These prices are updated weekly.
Driving the Cadillac STS
The STS-V’s sport-tuned suspension is an impressive piece of engineering, holding the car tightly in the sharpest curves while delivering excellent feedback to the driver through the nicely-weighted steering and responsive brakes. There’s no shortage of power from the supercharged V8 engine, which propels the 4,300-pound STS-V like a rock leaving a slingshot. While it isn’t as fluid through a canyon run as some other factory-tuned sedans, the STS-V’s sport-tuned suspension delivers impressive cornering limits. To ensure the STS-V’s abundant power doesn’t overwhelm the driving experience, Cadillac has created a unique four-mode version of its StabiliTrak stability control system, with settings for comfort, sport and competitive driving styles. The system seems to work best in the sport mode, delivering a balanced combination of ride comfort and handling.
Interior Comfort
The 2008 Cadillac STS-V’s cabin may be the most handsome interior ever produced by Cadillac. Supple leather covers the seats, steering wheel, door panels and dashboard. The clean simplicity of the STS-V’s center console is highlighted by a large touch-screen display for the audio and navigation systems, while a separate panel for the heating and ventilation controls resides beneath. The stalk-mounted cruise control switch struck us as outdated; we prefer this function to be placed on the steering wheel, where it’s more easily operated. As for Cadillac’s sport seats, we can confirm the suede inserts help keep occupants in place, but a bit more side bolstering would accomplish the same goal while providing much-needed lateral support.
Exterior Styling
The same stylistic gene pool that spawned the CTS sedan and XLR roadster also gives birth to the 2008 Cadillac STS-V. The car’s angular lines and upright profile distance it from the rounded contours found on most of its competitors and create a bold look that is uniquely American. Cadillac’s V-treatment takes this visual statement one step further, applying stainless-steel mesh to the grille and lower air intake and lowering the front and rear fascias. To make space for the engine’s supercharger, Cadillac sculpted a subtle bulge in the center of the STS-V’s hood, giving it a menacing stance slightly reminiscent of a 1960s-era muscle car. Keeping the STS-V firmly planted on the road are 18-inch wheels up front, with 19-inch wheels in the rear.
Favorite Features
Head-up Display
The Head-up Display works by projecting a digital readout onto the lower portion of the windshield. Without ever removing your eyes from the road, you can view pertinent information about speed, audio and cruise control settings.
Adaptive Remote Start
Cadillac’s remote start not only allows the car to be started from as far away as 200 feet, but it can also activate a number of preset commands, including operations for heating, air conditioning and defrost.
Standard Features
Standard equipment for the STS-V includes Brembo four-wheel anti-lock disc brakes (ABS), StabiliTrak stability control, a limited-slip rear differential and a six-speed automatic transmission with manual-shift mode. Inside, the STS-V features front and rear side-curtain airbags, Side Blind Zone Alert, Lane Departure Warning, Bose 5.1 Studio Surround Sound audio with MP3-capable six-disc CD changer, GPS navigation, OnStar, cruise control, Head-up Display, dual-zone automatic climate control, eight-way power front seats, heated front and rear seats, remote start, power tilt/telescoping steering wheel, High-Intensity Discharge automatic headlamps with washers, power sunroof, a heated windshield washer system and Ultrasonic Rear Parking Assist.
Factory Options
The STS-V’s option list is a short one. You can add cross-drilled brake rotors for enhanced fade resistance and equip the engine with a block heater. You can also order your STS-V without the power sunroof.
Engine & Transmission
The 2008 Cadillac STS-V employs a variation of Cadillac’s all-aluminum Northstar V8 engine. The 32-valve, 4.4-liter powerplant features dual overhead camshafts and variable valve timing (VVT) for improved efficiency. Cadillac engineers then added a supercharger that forces air into the engine’s combustion chambers, thus increasing horsepower and torque. The added power can mean added stress to the engine, so internal components such as the pistons, connecting rods, cylinder heads and camshaft have all been strengthened accordingly.
4.4-liter V8 Supercharged
469 horsepower @ 6400 rpm
439 lb.-ft. of torque @ 3900 rpm
EPA city/highway fuel economy: 13/19
2008 Cadillac STS
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2008 Cadillac STS Values and Prices
Style | Trade-In Value | Private Party Value | Fair Purchase Price | ||
|---|---|---|---|---|---|
$1,325 | $2,225 | $2,750 | |||
$5,400 | $7,500 | $8,550 |
2008 Cadillac STS Depreciation
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2008 Cadillac STS Annual Depreciation
Year | Vehicle Depreciation* | Resale Value | Trade-In Value | ||
|---|---|---|---|---|---|
2023 | + $19 | $3,570 | $1,761 | ||
2024 | $393 | $3,177 | $1,248 | ||
2025 | $46 | $3,131 | $1,195 | ||
Now | $906 | $2,225 | $1,325 |
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2-Year Forecasted Depreciation
*Depreciation for the last 12 months of the private party resale value.
2008 Cadillac STS Depreciation
Annual Depreciation is an estimation of what your vehicle's value might be over time based on an average of similar vehicles. Estimations are calculated by comparing Kelley Blue Book Private Party Values of vehicles similar to yours over time, as well as forecasts from Manheim Auction data comparing current and projected auction values against current Kelley Blue Book Private Party and Trade-In Values. This is not a guarantee of actual depreciation. Local weather conditions, market factors and driver performance will also impact your vehicle's actual depreciation.
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Specifications
Dimensions, Weights & Capacities
Curb Weight | 3973 lbs. | ||
|---|---|---|---|
EPA Total Interior | 116.7 cu.ft. | ||
Fuel Capacity | 17.0 gallons | ||
Front Head Room | 38.7 inches | ||
Front Leg Room | 42.6 inches | ||
Max Seating Capacity | 5 | ||
Overall Length | 196.7 inches | ||
Front Shoulder Room | 58.6 inches | ||
Towing Capacity, Maximum | 1000 lbs. | ||
Trunk or Cargo Capacity | 13.8 cu.ft. | ||
Turning Diameter | 36.9 feet | ||
Wheel Base | 116.4 inches | ||
Width with mirrors | 72.6 inches |
Exterior
Alloy Wheels | Available | ||
|---|---|---|---|
Fog Lights | Available | ||
Moon Roof/Sun Roof | Available | ||
Number of Doors | 4 doors | ||
Privacy Glass | Available |
Fuel Economy
City | 17 mpg | ||
|---|---|---|---|
Highway | 26 mpg | ||
Combined | 20 mpg |
Mechanical
Drivetrain | RWD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
6 speed | Available | ||
Recommended Fuel | Regular |
Performance
Horsepower | 302 @ 6300 RPM | ||
|---|---|---|---|
Torque | 272 @ 5200 rpm | ||
Engine | V6, 3.6 Liter |
Warranty
Basic | 4 years / 50000 miles | ||
|---|---|---|---|
Powertrain | 5 years / 100000 miles | ||
Corrosion | 6 years / Unlimited miles |
Comfort & Convenience
Entertainment
Interior
Seating
Technology
2008 Cadillac STS Safety
Safety Features & Technology
Crash Test Rating
Compare to Similar Vehicles
![]() Used 2008 Cadillac STS | ![]() Used 2013 Nissan Versa | ![]() Used 2012 Suzuki SX4 | ![]() Used 2008 Suzuki Forenza | ||
|---|---|---|---|---|---|
| Price | $2,750 | $3,000 | $2,925 | $2,750 | |
| KBB.com Rating | N/A | 3.0 | 2.8 | N/A | |
| Consumer Rating | 4.5 | 3.8 | 4.4 | 3.3 | |
| Fuel Economy | City 17/Hwy 26/Comb 20 MPG | City 27/Hwy 36/Comb 30 MPG | City 23/Hwy 30/Comb 26 MPG | City 19/Hwy 28/Comb 22 MPG | |
| Fuel Type | Gas | Gas | Gas | Gas | |
| Safety Rating | N/A | 4.0 | 4.0 | N/A | |
| Seating Capacity | 5 | 5 | 5 | 5 | |
| Basic Warranty | 4 years or 50000 miles | 3 years or 36000 miles | 3 years or 36000 miles | 3 years or 36000 miles | |
| Horsepower | 302 @ 6300 RPM | 109 @ 6000 RPM | 148 @ 6000 RPM | 127 @ 5600 RPM | |
| Engine | V6, 3.6 Liter | 4-Cyl, 1.6 Liter | 4-Cyl, 2.0 Liter | 4-Cyl, 2.0 Liter | |
| Drivetrain | RWD | FWD | FWD | FWD |
2008 Cadillac STS Rankings
FAQs
Is the 2008 Cadillac STS a good vehicle?
Yes, the 2008 Cadillac STS is a good car. Its Kelley Blue Book rating of 0 out of 5 is within 10% of our average rating.
What is the MPG for a 2008 Cadillac STS?
2008 Cadillac STS city/highway fuel economy ratings range from 13/19 mpg to 17/26 mpg, depending on trim and equipment.
How much should a 2008 Cadillac STS cost?
Used 2008 Cadillac STS prices currently range from $2,750 for the Sedan 4D to $8,550 for the STS-V Sedan 4D when purchasing from a dealership, depending on a range of factors like equipment, mileage, and condition.
What's the cheapest Cadillac STS?
The cheapest 2008 Cadillac STS is the Sedan 4D, with a Kelley Blue Book Fair Purchase Price of $2,750.
Is the 2008 Cadillac STS reliable?
The 2008 Cadillac STS is part of the 1st-generation STS, which our owners give an above-average reliability rating of 4.5 out of 5.






