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 The convertible version has been replaced by the S5 Cabriolet.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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  What a fun car! - 2000 Audi S4
  By Edward - August 29 - 3:51 pm

  In both summer and winter conditions, this car is amazing. With a twin turbo and plenty of horspower it really moves. In the winter, with the right snow tires it handles amazingly well (better than my wifes huge landcruiser). Note, make sure that you put winter snow tires on this car if you drive in the snow. the summer tires that come with the car are dangerous in snow. Overall, I loved owning this car!

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  Audi S4 - Hard to Beat! - 2004 Audi S4
  By audimania - August 6 - 11:59 am

  Leased silver sedan with automatic trans in October 2003. Car has 35,000 miles. It is truly a drivers car - on windy, country roads, it handles as well as my Porsche 911. The handling is superior as are the brakes and ride quality. Reliability has been a bit of an issue - transmission had to be replaced - would have cost in excess of $6500 if car had not been under warranty. In short, if you can accept the extremely mediocre gas mileage, and want to carry 4 in relative comfort, and you want a smile on your face every time you drive, this is the machine.

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  Can we go topless? - 2005 Audi S4
  By Inquisitor - July 28 - 3:16 am

  I bought this car in late 2004 and after a year and half, I figured I could finally do a complete review of it. I cross-shopped and found the S4 cab was best all-around. Up to 80 mph, the wind noise with the open top is astonishingly low - the best of any convertible Ive ever been in. The handling is superb for a convertible, but remember it is a front-heavy AWD vehicle, so drive it correctly or helloooo scary understeer - learned this at an Audi Club driving event. When done right, its awesome through the twisties. Overall, this is a grown-up, amazing sleeper of a cruiser.

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  Fantastic! - 2005 Audi S4
  By Punchai - July 17 - 3:41 pm

  Honestly, it’s too early for me to objectively rate all the characteristics. It’s SO much fun to drive - rain or shine. The engine is a beast and roars like a race car . . . people stare and frequently someone will ask what I’m driving. I love all the amenities – Recaro seats, Bose, NAV, XM, etc., etc. The ride is awesome and handling is second to none. My biggest criticism is that city gas mileage is poor (though comparable or better than a big truck or SUV).

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  Great when purchased, great now. - 2000 Audi S4
  By Erik Moeser - July 16 - 9:56 pm

  This has been an excellent car. Snows/winter wheels essential, and it is like a cat. Mostly problem free... new headlight washer pump(s?) and oxygen sensor, the latter fixed under emissions control warranty. Otherwise just routine maintenance. Performance suggest torque/hp ratings understated, as it feels fully as quick as the newer V8 models. Interior is of ultra high quality materials and design, and looks/feels as new after more than 6 years. Whole car is tight and performs as new. An absolute bargain at todays used car value, even putting aside $ for possible eventual repairs.

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  Too Much Fun! - 2001 Audi S4
  By Brandon - July 6 - 10:13 am

  After a long search I have finally found an Audi S4. So far all I can say is wow! Compared to my BMW M3, the Audi is so refined. The clutch and shifter work well. The brakes are fantastic. Overall styling and finish are top notch. The Bose sound system is tight. The xenon lights are great at night and so is the moonroof. I am so impressed every time I drive the car.

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  Great convertible - 2006 Audi S4
  By Audi lover - July 3 - 9:24 pm

  The S4 convertible is a stylish car! I have driven mine for 2000 miles now and just love it. Compared to other convertibles in this high performance range you get much more car for your money. I looked at the M3, but found the Audi better for every day driving. Great and smooth 8 cyl engine

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  Awesome Last Minute Switch from 530XI - 2006 Audi S4
  By Ron - June 25 - 7:53 pm

  I spent 6 months looking for an AWD Sport Sedan (live in NE, lots of snow and hills). Really didnt love any of them. Finally decided on BMW530XI over InfinitiM35X and LexusGS300. Went to buy 530XI and saw this at the dealer. One drive and I was sold. The car has the excitement that all the others are lacking. Acceleration, cornering, grip, etc... without the "ego" factor - understated "stealth". And the interior is much more functional than the BMW. Electronics (NAV, SAT Radio) work flawlessly! Recaro seats are perfect for a comfortable, but aggressive drive. This car competes as a realistic option for more than just the M3 it is usually compared with. I couldnt be more pleased!

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  911 Beater - 2004 Audi S4
  By audi4ever - June 23 - 10:37 pm

  This is one sensational automobile. Leased S4 automatic from local dealer in October 2004 and have been smiling ever since. The performance and handling are superb very close to my 2004 Porsche 911 C2 in terms of fun to drive quotient over windy, country roads. My spouse, who wanted an A6, uses the S4 to commute and loves its size and superior handling and power. The suspension is compliant/ A true sports sedan! Super in winter with a set of 4 snow tires. Downside: fuel economy is atrocious - under 15 mpg around town. But when lease expires in April 07, we have already decided to get another. Love Audis bumper to bumper warranty and service from local dealer.

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  The intelligent mans supercar! - 2004 Audi S4
  By David Fravel - June 14 - 4:19 pm

  Absolutely awesome performance. Does everything well or better than my last Porsche 911. Fit and finish is excellent and build materials are the best at any price range. Driving the S4 at low or extreme high speeds feels efforlessly with comfort and composure. The quattro makes a good driver a great driver and makes up for mistakes that would normally put a 911 in the bushes. The two-tone silver suede and leather Recaro seats are the best in the hi-performance industry. The motor pulls stong down low and doesnt let up to its 7200rpm redline. Its a cross between a 911 and muscle car. I cant say enough about the new S4. Its in its own league when compairing other extreme sport sedan.