Used 2008 Audi RS 4

2008 Audi RS 4
List Price Estimate
$13,797 - $23,036

Pros & Cons

  • Superb ride and handling balance, world-class engine, robust brakes, supportive seats.
  • Eyebrow-raising price, weighs nearly 2 tons, smallish rear seat.
Audi RS 4 years
Audi RS 4 for Sale

Edmunds' Expert Review

Want high-end sports car performance, but need an actual backseat and trunk? The 2008 Audi RS 4 may be just what the doctor ordered, as it's more fun than an M5 and much less expensive. No one will ever call it cheap, though.

Vehicle overview

Audi made a giant leap when it shoehorned a V8 into a compact luxury sedan with the S4. To make sure it wasn't quickly outdone by its perpetual rivals from Munich and Stuttgart, the 2008 Audi RS 4 is its pre-emptive strike of sorts, boasting a manic 420-horsepower V8 attached to a tweaked version of the Quattro all-wheel-drive system that skews power to the rear wheels. Beyond its fiercer V8, the RS 4 further differs from the relatively tame S4 via a more sporting chassis, bigger brakes and 19-inch wheels. These additions create a car that is simply superb in all the areas that make a top-notch performance car: acceleration, braking, ride quality and cornering.

For 2008, the RS 4 sedan is joined by a Cabriolet model that will be available in limited numbers. With the same supremely powerful V8 squeezed under its hood, the RS 4 Cabriolet should provide some of the most topless fun one can have outside the Playboy mansion. Like the tamer S4, the convertible version has less aggressively bolstered sport seats and a slightly different interior design, as well as obvious reductions in body rigidity.

As BMW and Mercedes prepare to up the ante in the ever-increasing horsepower war with their respective new M3 and C63 AMG, Audi can rest assured that it already has a thoroughly awesome weapon ready for battle. In a comparison test, we even picked the RS 4 over the BMW M5. The shocking price tag attached to the 2008 Audi RS 4 (and its new competitors) will probably make some people think twice about ponying up that much for a compact sedan, but between its power, agility and utility, the Audi makes a rational case for itself against similarly priced sports cars and larger luxury sedans.

Audi RS 4 models

The 2008 Audi RS 4 is a compact ultra-performance car based on the Audi A4, and it's available in sedan and convertible body styles. Standard features include 19-inch wheels with 255/35 high-performance tires, Dynamic Ride Control suspension, xenon headlights, Recaro sport seats with power adjustment (the Cabriolet has less aggressive, non-Recaro seats) and front seat heaters. Silk napa leather upholstery, carbon-fiber cabin trim, dual-zone automatic climate control, a 10-speaker audio system with six-disc CD changer, a sunroof (on the sedan, obviously) and rear park assist are also standard.

A premium package is optional on the sedan and includes auto-dimming mirrors, a navigation system, an upgraded Bose audio system with satellite radio, heated rear seats, Homelink, a power rear sunshade and Bluetooth capability. These items are all standard on the limited-production RS 4 Cabriolet. Integration for an iPod is a stand-alone option on the sedan and a no-cost option in place of the standard six-CD changer on the Cabriolet. The Titanium and Audi Exclusive Packages add special exterior and interior trim features to the RS 4 sedan.

2008 Highlights

There is a new, limited-production RS 4 Cabriolet model for 2008. A pair of new trim packages are the only changes to the Audi RS 4 sedan.

Performance & mpg

A 4.2-liter V8 engine powers the RS 4. Equipped with direct fuel injection and sporting a 12.5:1 compression ratio, this powerhouse makes 420 hp and 317 pound-feet of torque. A six-speed manual gearbox (the only transmission offered) sends the power to all four wheels through Audi's Quattro all-wheel-drive system, which has a 40/60 front-to-rear power split in this application. During instrumented testing, an RS 4 sedan shot to 60 mph in 4.5 seconds and ran the quarter-mile in 13 seconds at 107 mph, which should be good enough to hang with the new M3 and C63 AMG.


Stability control, antilock brakes, front-seat side airbags and full-length head curtain airbags are all standard on the 2008 Audi RS 4. (The Cabriolet doesn't have the curtains, though). Official crash tests have not been performed on the RS 4, but one could assume with fair confidence that its scores would be similar to the good ratings achieved by the regular A4 sedan.


With more than 400 hp and the grip of all-wheel drive, the 2008 Audi RS 4 has no problem catapulting itself off the line or out of a corner. With a broad torque spread, there's always power on tap. Apart from the incredible acceleration, the RS 4 makes a strong showing in the braking and handling departments. Through the curves, the RS 4 is a composed master despite its hefty curb weight. Inside Line testers recorded a slalom speed of 70.6 mph, which puts the RS 4 in an elite circle of cars with four doors. In fact, we awarded it first place in a comparison test against the BMW M5. Confidence and grip from the front tires are superb, balance is good and steering feel at speed is better than any Audi we've ever driven.


Audi consistently produces some of the finest automobile interiors, and the 2008 RS 4 is no exception. The sedan design differs slightly from the Cabriolet's, but both models feature superb materials, excellent fit and finish, and efficient controls. The navigation system isn't the most user-friendly design, though. As a serious performance car, the S4 sedan is saddled with standard Recaro front seats, which feature aggressive bolstering to hold one in place when zipping around corners. Although the rear seat is fine for small children, adults seated back there will likely complain about a shortage of legroom. Of course, it's a welcome amount of space compared to sports cars that offer similar performance.


Overallundefined / 5

Consumer reviews

Read what other owners think about the 2008 Audi RS 4.

5 star reviews: 92%
4 star reviews: 0%
3 star reviews: 8%
2 star reviews: 0%
1 star reviews: 0%
Average user rating: 4.8 stars based on 13 total reviews

Trending topics in reviews

  • handling & steering
  • appearance
  • interior
  • wheels & tires
  • comfort
  • sound system
  • ride quality
  • road noise
  • spaciousness
  • reliability & manufacturing quality
  • steering wheel
  • driving experience
  • engine
  • acceleration
  • brakes
  • seats
  • fuel efficiency
  • transmission
  • maintenance & parts
  • emission system

Most helpful consumer reviews

4.875 out of 5 stars, Awesome car!

This is one of the greats, for sure. Classic lines, great build quality, amazing powertrain. The engine always feels 'on boil' and the transmission gearing matches the power band perfectly. Great noises - I almost never turn on the radio with this engine and exhaust note filling the cabin. Still gets a lot of looks even though the B8 body style is out. I'll be keeping this one for a long time to come.

4.875 out of 5 stars, Best Audi Ever

This is one of the Best cars out there, better than a BMW M3 or M5, Better than a Benz 63AMG. I enjoyed Herb's comments on this car, obviously he's never driven an RS4 and must dislike Audi. Anyone who compares this car to an EVO is, well, not well informed. Best of luck to you Herb!! LOL There's no car out that that can compare to this, it looks like a cute little kitty, but can tear your head right off. Handling is out of this world and has a fully defeatable traction control which blows your mind.

5 out of 5 stars, Audi Should Just Bring This Car Back to the US

My 2008 Audi RS4 with the available options has now turned 32,000 miles. The hardest part of owning this car during my 60 mile per day over a twisty highway is in keeping my speeds down. I put a K&N air filter in, and keep the S button pushed down and whether it is raining or dry, the handling, sounds, speed, control and Gallardo sourced brakes are incredible. This is a phenomenal car. Buy one if you want a Porsche GT3 with usable back seats, that in turn can be flattened out to create a cargo bay, or a place for your dogs to lay down on a trip. Unbelievable car!

5 out of 5 stars, Such a joy to drive and own

My RS4 continues to amaze me every time I take her for a drive. Amazing in every way and especially when you consider what a wonderful daily driver the RS4 can be. I've been able to get 24.9 mpg when driving very conservatively. What other 400+ HP V8 car can you say that about? My only complaint is the location of the parking brake with regard to the arm rest. Otherwise, perfect.

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See all 13 reviews

Features & Specs

quattro 2dr Convertible AWD features & specs
quattro 2dr Convertible AWD
4.2L 8cyl 6M
MPG 12 city / 19 hwy
Seats 4
6-speed manual
420 hp @ 7800 rpm

See all Used 2008 Audi RS 4 features & specs


NHTSA Overall Rating

The National Highway Transportation Safety Administration offers independent analysis.

Frontal Barrier Crash RatingRating
OverallNot Rated
Driver4 / 5
Passenger4 / 5
Side Crash RatingRating
OverallNot Rated
Side Barrier RatingRating
OverallNot Rated
Driver5 / 5
Passenger4 / 5
Combined Side Barrier & Pole RatingsRating
Front SeatNot Rated
Back SeatNot Rated
Rollover4 / 5
Dynamic Test ResultNo Tip
Risk Of RolloverNot Rated


Is the Audi RS 4 a good car?
The Edmunds experts tested the 2008 RS 4 both on the road and at the track. You probably care about Audi RS 4 fuel economy, so it's important to know that the RS 4 gets an EPA-estimated 14 mpg. What about cargo capacity? When you're thinking about carrying stuff in your new car, keep in mind that the RS 4 has 11.1 cubic feet of trunk space. And then there's safety and reliability. Edmunds has all the latest NHTSA and IIHS crash-test scores, plus industry-leading expert and consumer reviews to help you understand what it's like to own and maintain a Audi RS 4. Learn more
Is the Audi RS 4 reliable?
To determine whether the Audi RS 4 is reliable, read Edmunds' authentic consumer reviews, which come from real owners and reveal what it's like to live with the RS 4. Look for specific complaints that keep popping up in the reviews, and be sure to compare the RS 4's average consumer rating to that of competing vehicles. Learn more
Is the 2008 Audi RS 4 a good car?
There's a lot to consider if you're wondering whether the 2008 Audi RS 4 is a good car. Safety scores, fuel economy, cargo capacity and feature availability should all be factors in determining whether the 2008 RS 4 is a good car for you. Check back soon for the official Edmunds Rating from our expert testing team Learn more
How much should I pay for a 2008 Audi RS 4?

The least-expensive 2008 Audi RS 4 is the 2008 Audi RS 4 quattro 2dr Convertible AWD (4.2L 8cyl 6M). Including destination charge, it arrives with a Manufacturer's Suggested Retail Price (MSRP) of about $81,900.

Other versions include:

  • quattro 2dr Convertible AWD (4.2L 8cyl 6M) which starts at $81,900
Learn more
What are the different models of Audi RS 4?
If you're interested in the Audi RS 4, the next question is, which RS 4 model is right for you? RS 4 variants include quattro 2dr Convertible AWD (4.2L 8cyl 6M). For a full list of RS 4 models, check out Edmunds’ Features & Specs page. Learn more

More about the 2008 Audi RS 4

Used 2008 Audi RS 4 Overview

The Used 2008 Audi RS 4 is offered in the following submodels: RS 4 Sedan, RS 4 Convertible. Available styles include quattro 4dr Sedan AWD (4.2L 8cyl 6M), and quattro 2dr Convertible AWD (4.2L 8cyl 6M).

What do people think of the 2008 Audi RS 4?

Consumer ratings and reviews are also available for the 2008 Audi RS 4 and all its trim types. Overall, Edmunds users rate the 2008 RS 4 4.8 on a scale of 1 to 5 stars. Edmunds consumer reviews allow users to sift through aggregated consumer reviews to understand what other drivers are saying about any vehicle in our database. Detailed rating breakdowns (including performance, comfort, value, interior, exterior design, build quality, and reliability) are available as well to provide shoppers with a comprehensive understanding of why customers like the 2008 RS 4.

Edmunds Expert Reviews

Edmunds experts have compiled a robust series of ratings and reviews for the 2008 Audi RS 4 and all model years in our database. Our rich content includes expert reviews and recommendations for the 2008 RS 4 featuring deep dives into trim levels and features, performance, mpg, safety, interior, and driving. Edmunds also offers expert ratings, road test and performance data, long-term road tests, first-drive reviews, video reviews and more.

Our Review Process

This review was written by a member of Edmunds' editorial team of expert car reviewers. Our team drives every car you can buy. We put the vehicles through rigorous testing, evaluating how they drive and comparing them in detail to their competitors.

We're also regular people like you, so we pay attention to all the different ways people use their cars every day. We want to know if there's enough room for our families and our weekend gear and whether or not our favorite drink fits in the cupholder. Our editors want to help you make the best decision on a car that fits your life.

What's a good price for a New 2008 Audi RS 4?

Which 2008 Audi RS 4s are available in my area?

Shop Edmunds' car, SUV, and truck listings of over 6 million vehicles to find a cheap new, used, or certified pre-owned (CPO) 2008 Audi RS 4 for sale near. Simply research the type of car you're interested in and then select a car from our massive database to find cheap vehicles for sale near you. Once you have identified a used vehicle you're interested in, check the AutoCheck vehicle history reports, read dealer reviews, and find out what other owners paid for the 2008 Audi RS 4.

Can't find a new 2008 Audi RS 4s you want in your area? Consider a broader search.

Find a new Audi RS 4 for sale - 6 great deals out of 24 listings starting at $24,605.

Find a new Audi for sale - 6 great deals out of 6 listings starting at $25,237.

Why trust Edmunds?

Edmunds has deep data on over 6 million new, used, and certified pre-owned vehicles, including rich, trim-level features and specs information like: MSRP, average price paid, warranty information (basic, drivetrain, and maintenance), features (upholstery, bluetooth, navigation, heated seating, cooled seating, cruise control, parking assistance, keyless ignition, satellite radio, folding rears seats ,run flat tires, wheel type, tire size, wheel tire, sunroof, etc.), vehicle specifications (engine cylinder count, drivetrain, engine power, engine torque, engine displacement, transmission), fuel economy (city, highway, combined, fuel capacity, range), vehicle dimensions (length, width, seating capacity, cargo space), car safety, true cost to own. Edmunds also provides tools to allow shopper to compare vehicles to similar models of their choosing by warranty, interior features, exterior features, specifications, fuel economy, vehicle dimensions, consumer rating, edmunds rating, and color.

Should I lease or buy a 2008 Audi RS 4?

Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

Check out Audi lease specials