Overview & Reviews

With its line of S models, Audi has built a reputation for delivering understated luxury along with a healthy dose of performance. Supporting the foundation of this reputation is the Audi S4, which is a sportier variant of the already-proficient A4 entry-level luxury sedan. As such, both of these Audis benefit from handsome styling, excellent interior design and materials, cosseting comfort and superior road-holding thanks to all-wheel-drive traction.

Where the S4 and A4 differ is in performance. Throughout its run, the S4 has boasted higher power output, sharper handling and impressive braking capabilities. Shoppers seeking a used S4 may, depending on the model year, have several body styles from which to choose. On the downside, the S4 has typically lacked the crisp handling performance offered by some of its rivals. Overall, though, we hold the Audi S4 in high regard.

Current Audi S4
Unlike previous generations, the current fifth-generation Audi S4 is only available as a sedan. The convertible version has been replaced by the S5 Cabriolet. The S4 is powered by a supercharged 3.0-liter V6 that produces 333 horsepower and 325 pound-feet of torque. A standard six-speed manual or optional seven-speed dual-clutch automated manual (S tronic) sends power to Audi's rear-biased "Quattro" all-wheel-drive system.

Inside, you'll find (in true Audi tradition) one of the finest cabins in the sport sedan class. The overall design is demure but classy, and although the center console is rather button-happy, Audi's updated MMI electronics interface is now much friendlier to use than before. The seats are supremely comfortable in the front, offering plenty of support through corners and over distances. Like the A4, the S4 offers a reasonably large backseat should your sport sedan be called on for family duty.

The S4 comes with an ample list of standard luxury features like xenon headlights, selectable driving settings (known as Audi Drive Select), tri-zone climate control and leather/faux-suede upholstery. Upgrades include bigger wheels, an adaptive suspension, a rear limited-slip differential, keyless ignition and entry, navigation and a premium Bang & Olufsen stereo.

The S4 shines thanks to its strong supercharged V6, sharp handling and a forgiving nature made possible by Quattro and that optional limited-slip rear differential. Even driven aggressively, the S4 imparts confidence to the driver. Grip is tenacious and the chassis is communicative. Even so, ride comfort is commendable and cabin noise is pleasantly hushed.

Used Audi S4 Models
The current Audi S4 represents the fifth generation in the model's lineage, debuting in 2010. An optional rearview camera and blind-spot warning system were made available the following year. For 2013, the S4 received a slight styling update (with more angular grille/headlights) and a revised MMI control interface. That year also saw the switch to electric-assisted steering. Apart from lacking Audi Drive Select as standard (it was optional though), these latter S4s are similar to today's version.

The previous, fourth-generation Audi S4 was available in a variety of body styles. The sedan and wagon (Avant) were sold from 2006-'08, while the convertible (cabriolet) lasted from 2007-'09. Relative to third-generation S4s, the fourth generation offered refreshed styling, a revised chassis and a more sport-biased Quattro system, though these changes represented more of a revitalization effort rather than a complete redesign.

Under this S4's hood was a 4.2-liter V8 that generated 340 hp and 302 lb-ft of torque. Power was sent to the Quattro all-wheel-drive system through either a six-speed manual transmission or a six-speed automatic. As with today's S4, this generation model had additional performance-oriented modifications, including a sport-tuned suspension, 18-inch wheels with high-performance tires and more powerful brakes.

Inside, front occupants were treated to a comfortable and functional cockpit. The backseat was more cramped than in the current car, and the electronics systems may seem a bit dated now. The electronics interface, in particular, could be quite frustrating to use with the optional navigation system installed. Leather seating was standard, and interior trim, lighting and controls were all of high quality.

The similar third-generation S4 was offered for 2004 and '05. This was the model that introduced the 340-hp V8 engine and expanded S4 availability to the sedan, wagon and convertible body styles. As with the fourth-gen S4, transmission choices were either a six-speed manual or a six-speed automatic. At the time, the installation of such a powerful V8 in a small car raised some eyebrows, and indeed it boasted more power than BMW's contemporary M3 or Mercedes' C32.

In reviews of the third- and fourth-generation S4, we commented favorably about the car's broad power band, multiple body styles and high-quality interior. Downsides were a cramped backseat and handling that wasn't as razor-sharp as the M3's. The fact that the current S4 no longer has the V8 engine should make these generations a more novel, collectible choice in coming years.

Previous to these newer S4s, there were two other generations of the Audi S4 -- a second-generation vehicle, available from the 2000-'02 model years, and a first generation, available from 1992-'94.

The second-generation model was based on the A4 sedan and wagon of its day, and it came equipped with a twin-turbo 2.7-liter V6 engine rated at 250 hp. Quattro was standard, and Audi offered either a six-speed manual transmission or a five-speed automatic. In Edmunds' S4 road tests at the time, we found the car very enjoyable to drive, as it struck an ideal balance between outright performance and everyday comfort. Our main complaint about this model was the familiar lack of rear-seat room.

The first-generation Audi S4 was a performance variant of the Audi 100 sedan (later A6) sold from 1992-'94. These S4s came with a turbocharged inline five-cylinder engine capable of 227 hp. Quattro was again standard, and these cars were equipped with a five-speed manual transmission only. After 1994, they became known as the S6. First-generation S4s are a relatively rare find today.

User Reviews:

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  M3 beater - 2005 Audi S4
  By mark - May 7 - 5:52 pm

  BMWs M3 really is a phenominal car quick, solid and good looking, but how many do you see around. The S4 is understated and, for an estate, very attractive. Straight line the BMW will win, driving entertainment and again the M3 pips the Audi to the post but for sheer aural entertainment nothing can beat a V8 (except a V10). Not only that, but Audis Quattro system means that 344PS is avaiable come rain or shine an awesomely inspiring piece of German engineering - next time Audi, a little rear bias on the Quattro and that sacrifice in grip will be more than made up for in driving entertainment.

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  pros and cons of S4 convertible - 2005 Audi S4
  By Rick - April 6 - 11:49 pm

  A fun car to drive. The quattro is awesome and adds much performance. This car is as much fun in snow as it is with the top down in summer. Great handling in ALL weather conditions. I think that Audi is improving its customer service but it is not yet as good as Lexus or Mercedes. You will need to soon replace the standard performance tires that come with the car. I recommend getting all weather tires to rotate onto the car in winter for both performance and economy. Tiny trunk if you put the top down. The cars interior has very little storage. The drink holders are awful expect a spill. Tiny rear seat not comfortable for adult. However, overall, I like the car, drives great, and it is fun!

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  2005 Audi S4 - 2005 Audi S4
  By VW - March 14 - 4:49 pm

  Wonderful car, have been driving it for 4 weeks. I find myself taking the long way home just for fun. For those who want it all in a car that can be driven year round in the NE, this is it.

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  Excellent Bahnstormer, Minor Flaws - 2005 Audi S4
  By Steve - February 16 - 4:13 pm

  A unique car, if you focus more on content than styling. While the car is plenty handsome, it looks much like the lesser A4 - a car that is some $15k cheaper. The rims, spoiler and aluminum mirror housings help differentiate it somewhat. Looking at and touching the leather, wood and excellent plastics is a pleasure. All controls are precise, well-placed and expensive feeling. I chose this car for its more sporting nature than the A6, the more youthful attitude than the Cadillac CTS, and the extra doors relative to the M3. To my eye, it is better looking and sportier than the choices from Japan and the US. Finally, at $52K, it is significantly less expensive than V8s from MB or BMW.

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  Speed and looks... - 2005 Audi S4
  By 2005S4 - December 28 - 2:36 am

  Awesome car, very fast, great handling.

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  A great car with problems !!! - 2005 Audi S4
  By amp_ny - December 2 - 5:55 pm

  I got this car in May 2004. Its a great, fun car to drive but I have several minor problems but the most important one is, while driving between 900-1100 rpm or when i go down gear, I hear a vibration. it sounds like coming from the muffler but it doesnt. Went back to the dealer twice and finally second time, they said that its coming from the drive chain. Maybe they will have to take the engine out to fix it.

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  Audi S4 - 2005 Audi S4
  By papapushkas - November 4 - 3:28 pm

  I have owned this car now for six months. No problems so far with the exception of the wind-blockers design - very flimsy retaining clips. The engine is superb - too bad that the car is way too heavy, detracting from the performance. The poor fuel economy is due the weight as well. Nevertheless I am amazed that I could not think of any serious complaint about the car so far. I will have to get winter tires/rims for it and at 1300+ they are not cheap but they are essential for winter mobility. Would I buy the car again? In a heartbeat.

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  best suv killer ever - 2001 Audi S4
  By Eric132451 - October 22 - 2:00 am

  It does everything great. Fast, fun, comfortable. It even has a big trunk to swallow everything i can throw at it. I travel to Lake Tahoe every year and this thing is unstoppable on winter tires. Throw it sideways on ice and it is instantly recoverable. Drove to Vegas one winter and the entire highway was black ice. 350 cars got in accidents. I was the only car to make it through the highway. The Red Sea of SUVs parted as they spun into the ditch as i drove right through the middle of them on summer tires. Not a single car on the road the last 15 miles

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  2004 V8 vs. 2001 Biturbo - 2004 Audi S4
  By adeshpa - June 18 - 2:00 am

  I traded in my 2001 S4 biturbo for a 2004 6-spd. The 2004 is very quick (with MT clocking a 5 second 60 MPH sprint, versus the factorys 5.6 est.), with an incredibly usuable torque curve. Unlike the 2001, there is no lag in acceleration, and it pulls hard from 2k RPM all the way to 5k before tailing off--you dont have to work the engine hard to bring a smile to your face. The torque is noticeable on the highways as well, where 60-90 MPH sprints pass by in a blur. Minuses--Fit and finish is poorer, mileage is terrible, harsh ride (esp. if you live in the NE), adaptive steering and handling generally can be irritating. Gripes are small.So far I love it.

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  Fun to drive, nightmare to own - 2000 Audi S4
  By nomoreaudijunk - June 7 - 2:00 am

  Issues included: A/C system was improperly assembled and poured water into the passenger seat. Water pump, catalytic converters, oxygen sensors, and coil packs - all replaced. When I brought it in last week, the ABS computer was shot. Cruise control switch shot. This car is a piece of crap. When the cats and pre-cats were replaced under an emissions system warranty, at Metro, I had to pay for new O2 sensors. They were an Audi mandated repair along with the converters, but Audi wouldnt cover it EVEN THOUGH THEY REQUIRED IT AS PART OF THE WARRANTY REPAIR. I got Audi customer service to cover half the cost, and they acted like they were doing me a favor.