2008 Audi S4

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starting MSRP

Key specs

Base trim shown


Body style


Seating capacity

180.6” x 55.7”


All-wheel drive



The good:

  • Exuberant performance
  • Handling
  • Refinement
  • Ride on smooth pavement
  • Seat comfort and support

The bad:

  • Manual-gearbox operation
  • Some driveline whine with manual
  • Wind rush in convertible with top down
  • Fuel economy
  • Backseat legroom (convertible)

3 trims

Starting msrp listed lowest to highest price

Wondering which trim is right for you?

Our 2008 Audi S4 trim comparison will help you decide.

See also: Find the best Sedans for 2024

Notable features

  • 340-hp, 4.2-liter V-8
  • Manual or automatic
  • Quattro AWD
  • Three body styles

2008 Audi S4 review: Our expert's take

Vehicle Overview
Audi continues to offer its S4 in sedan, wagon (Avant) and convertible (Cabriolet) body styles for 2008. Bluetooth-based cell phone connectivity and Sirius Satellite Radio are now standard, and RS 4-like 18-inch alloy wheels are available. Competitors include the Cadillac CTS-V and Lexus IS-F.

Quattro all-wheel drive is standard on all S4 models. A Torsen torque-sensing center differential helps send power to the wheels with the most traction. The extensive use of aluminum in the suspension results in low unsprung mass.

(Skip to details on the: S4 Avant or S4 Cabriolet)

Xenon high-intensity-discharge headlights flank the S4’s grille, which features a unique S-model look. Large front air intakes are installed, and the sedan has a trunk-mounted spoiler. Alloy wheels hold 18-inch tires, and the side mirrors have aluminum accents. The S4’s sport suspension includes stiffer shocks and springs, stronger stabilizer bars and a lowered ride height.

The S4 sedan features a 60/40-split folding rear seat and holds five people. The driver faces gray instruments and a leather-wrapped three-spoke steering wheel. Tiptronic shift paddles are installed on models equipped with the automatic transmission. Silk Nappa leather upholstery is used, and the Recaro sport seats have 12-way power adjustment.

All S4s are prewired for either Sirius or XM Satellite Radio. Options include a navigation system and a Bose premium sound system.

Under the Hood
Audi’s 4.2-liter V-8, which is also used in the automaker’s larger models, was modified to fit into the S4’s compact engine compartment. Developing 340 horsepower at 7,000 rpm, the V-8 produces 302 pounds-feet of torque at 3,500 rpm. Audi says the S4 can accelerate from zero to 60 mph in 5.3 seconds when equipped with the six-speed manual gearbox. A specially tuned exhaust system is installed. A six-speed automatic transmission that features a manual-shift provision is available.

Antilock brakes have electronic brake-force distribution. Standard side curtain airbags cover the entire side-window area. Seat-mounted side-impact airbags for front occupants are standard, and rear-seat side-impact airbags are optional. Height-adjustable front seat belts have load limiters, and an electronic stability system is standard.

S4 Avant
Capable of seating five people, the S4 Avant wagon uses the same powertrain as the S4 sedan. Aluminum roof rails are installed. Avant models have a full-size cargo cover and a protective net. With 27.8 cubic feet of cargo room, the S4 Avant has slightly more than double the sedan’s cargo space. Back to top

S4 Cabriolet
An iPod connection kit is available for 2008, and heated front seats are standard. Powertrain details for the S4 Cabriolet are the same as the sedan’s. In models equipped with the automatic transmission, paddle shifters are included for manual gear changes. Audi claims a 0-to-60-mph acceleration time of 5.8 seconds with the manual gearbox.

Structural refinements in the S4 convertible are found in its sills, A-pillars, under the rear seat and in the double bulkhead behind the backseat. Sensors in the active rollover protection system detect an imminent rollover and deploy protective hoops behind the rear seats. The power fabric top contains a heated glass rear window.

The quick, capable S4 Cabriolet rides and handles as if it’s almost gliding atop the pavement, without a hint of heaviness. Little steering effort is needed, but the open-top S4 responds instantly and confidently once you get past that sensation of lightness. Acceleration with the manual shift falls short of startling, but it comes close — both from a standstill and when passing or merging. Shifts demand some finesse to avoid jerkiness.

The ride is almost gentle on smooth surfaces, but roughness turns up as the pavement gets harsher. Wind rush with the top down can get nasty, but the S4 convertible feels solid even on undulating pavement. Backseat legroom is rather sparse, and trunk space is modest. Back to top

Consumer reviews

Rating breakdown (out of 5):
  • Comfort 4.0
  • Interior 4.7
  • Performance 4.7
  • Value 4.5
  • Exterior 4.7
  • Reliability 4.5

Most recent consumer reviews


Fun car to drive

Great engine but Has timing chain rattle, interior is in prestige condition years later. Comfortable ride quality but make sure to look at the front control arms and axles, my front two are clicking. Headlights, watch out mine have seen better days.


Best all year drivers car

This car is quite literally the best thing I’ve ever owned and is so much fun to drive. The ride is a bit harsh and pot holes will kill your back but overall tolerable for daily driving. The performance is amazing the throttle response from the 4.2L N/A V8 is amazing and it always has power on demand (above 4,000 rpm that is). Luckily for me the cars last owner took amazing care of the car mechanically and cosmetically so the reliability has been great but the timing chains will fail on all 4.2 V8 models inevitably but if you keep doing general maintenance it’ll last a long long time (higher mileage doesn’t always mean bad either I bought my car with 122,568) just be careful when shopping for this car and listen for a rattle on start up if it lasts longer than 2 seconds run away but do know that most B7 S4’s had this rattle from the day they were built but you’ll only be able to hear while the car is turning over or for a split second after turn over


S4 Avant

This car is awesome, period. Everywhere I go, I get complements on my (new to me) Avant. And the power, its there when you need it ! Now its not a 500 horse powerhouse like some cars out there, but for everyday driving and even when you want to go to the mountain twisties, this car is just right to get the job done with a big smile on your face ! The only two slightly negative things about this car are these : the gas consumption is 13 city / 20 highway. Average is 16mpg. If that shocks you then this isn't the car for you. Then comes the overall cost of ownership, above the gas guzzeling. when she needs to go to the shop for something specific or just a simple oilchange ( which will cost $100 even if you do it yourself) , plan on a bare minimum of $150 to $300. Now, if your not swayed by any of that and you just plain love this car (like I do) than find the best speciman you can and take the plunge !! Oh yeah, did I mention the exhaust note... Highly addicting !!!!!

See all 6 consumer reviews


Based on the 2008 Audi S4 base trim.
Frontal driver
Frontal passenger
Side driver
Side rear passenger


New car and Certified Pre-Owned programs by Audi
New car program benefits
48 months/50,000 miles
144 months/unlimited distance
48 months/50,000 miles
Roadside assistance
48 months/unlimited distance
Certified Pre-Owned program benefits
Maximum age/mileage
5 model years or newer/less than 60,000 miles
Basic warranty terms
1 year or 20,000 miles (whichever occurs first)
Dealer certification required
125-point inspection
Roadside assistance
View all cpo program details

Have questions about warranties or CPO programs?

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