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2008 Audi S4

Used 2008 Audi S4

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2025
2008
Fuel Economy
15 - 16 combined mpg
Horsepower
340 hp
Engine
V8, 4.2 Liter
Cargo Volume
10.2 - 27.8 cu ft
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2008 Audi S4 Review

KBB Editors

By KBB Editors

Updated December 23, 2019

Our editors drive and evaluate hundreds of new cars every single year, turning thousands of miles and countless hours behind the wheel into helpful reviews, ratings, and comparisons. They also have lives outside of work, or so they think. You’d be surprised what you can learn by hauling a dirt bike, hunting for a wayward sippy cup, or just packing the trunk full of groceries.

Pros

If you’re a high-performance enthusiast who doesn’t like to compromise, you’ll love the 2008 Audi S4. It’s a remarkable combination of abundant power, incredible performance, phenomenal handling and a stunning interior providing first-rate comfort and luxury.

Cons

You won’t like this car if you have to stick to a budget. It’s not inexpensive to purchase, or to insure, or to keep the gas tank full. It’s terrific, but it’s not for everybody.

What's New?

About the only notable changes for 2008 are the addition of SIRIUS Satellite Radio and Bluetooth connectivity as standard equipment and optional 18-inch wheels from the RS4.

The 2008 Audi S4 takes everything good about the A4 Sedan (comfortable interior, reasonable dimensions and razor-sharp handling) and ratchets it up a few notches by adding a potent V8 engine, standard quattro all-wheel drive and a race-inspired suspension. Designed to compete with the upcoming new BMW M and Mercedes-Benz AMG Series, Audi expands the sports car definition by offering the S4 in sedan, wagon (known as the S4 Avant) and convertible forms. Comfortable enough to use as a daily driver, yet equally at home on a closed race track, the S4 delivers unrelenting doses of speed and agility, allowing even the novice driver to feel like a seasoned pro. The S4’s $50,000 plus price tag and limited production numbers ensure the lucky owner a small measure of exclusivity.

2008 Audi S4 Pricing

2008 Audi S4 pricing starts at $7,537 for the S4 Quattro Sedan 4D, which had a starting MSRP of $50,710 when new. The range-topping 2008 S4 Quattro Cabriolet 2D starts at $7,476 today, originally priced from $58,975.

Original MSRP
KBB Fair Purchase Price (national avg.)
$50,710
$7,537
$53,660
$8,206
$58,975
$7,476

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 Audi S4 models in typical condition when purchasing from a dealership. These prices are updated weekly.

Driving the Audi S4

The 2008 Audi S4’s levels of acceleration, handling and braking are simply far beyond most drivers’ previous automotive experiences. Even those with considerable time in very high-performance cars will likely be seriously impressed. Audi offers a choice of two transmissions: A six-speed manual or the optional SporTronic automatic, the later operated with steering wheel-mounted shift paddles. The quattro system is a perfect match for the engine, and does an exemplary job of delivering the V8’s remarkable output to all four wheels for the optimum in traction, handling and stability. Although there is nothing subtle about the S4’s ride quality, for those who want a car like this it’s a small trade-off when compared to the S4’s awesome performance level.

Interior Comfort

Audi has a reputation for terrific interiors and the S4’s might just make you want to climb in and never leave. Open the door and you’re immediately aware of wonderful sights, surfaces and even sounds. The 12-way adjustable power Recaro sport seats are covered in rich Nappa leather, with the option of Alcantara color-keyed inserts. There is subtle gray birch wood trim and S4 logos adorn the instruments and thick gearshift knob. Pedals are perfectly positioned for those who can accomplish the classic heel-and-toe downshift, and the thick-grip adjustable wheel instills a feeling of utter confidence when negotiating tight turns. Music lovers can add a 215-watt Bose audio system with AudioPilot noise compensation feature.

Exterior Styling

Visually, the 2008 Audi S4 can be thought of as a variant of the A4, with aggressive front and rear bumpers that include slotted lower air vents, a revised grille and fog lights. Other S4 styling cues include aluminum exterior side mirrors, S4 badges at the base of the trunk lid and body-colored lower door lips. Though it is clearly a four-door sedan, the slick shape and blacked-out B-pillars make it easy to mistake it for a high-performance coupe. All S4s wear a set of 18-inch wheels identical in design to the new S8’s 20-inch wheels. A tastefully small rear wing and lower air dam complete the S4’s appearance.

Favorite Features

Recaro Sport Seats
The S4’s Recaro sport seats are outstanding. They hold you in all the right places without pinching. Add the optional Alcantara upholstery and the interior becomes even more stunning.

Audi Navigation System
The available Audi navigation system displays route direction on a small screen tucked neatly between the speedometer and tach. This makes it quite easy to read the directions, as they are in your line of sight, rather than off to the side.

Standard Features

The 2008 Audi S4 is packed with such goodies as a six-speed manual transmission, quattro all-wheel drive, power moonroof, front-side airbags, full-length side-curtain airbags, 12-way power Recaro seats with power lumbar support, 18-inch wheels, MP3-compatible six-disc CD changer, SIRIUS Satellite Radio, bi-xenon headlamps with washers, dual heated outside mirrors, tilt/telescopic steering wheel, Driver Information Center and dual-zone automatic climate control.

Factory Options

The S4’s options sheet is extensive. Popular items include rear side-impact airbags, a power rear sunshade, Audi’s navigation system, Bose audio, heated rear seats and a pass-through ski sack. The Convenience Package adds a garage door opener, dual power folding mirrors with day/night feature, heated front seats, Bose Audio, adaptive headlamps and rain sensing wipers.

Engine & Transmission

The S4’s 4.2-liter V8 is a masterful piece of engineering. It has all the power of a muscle-car era V8 without a rude idle and course acoustics. Under normal driving conditions the S4’s engine sounds correctly polite – the major indication of its eight-cylinder symphony is evident at the exhaust pipe. Push the accelerator to (or near) the floor and it’s a whole different story. A throaty growl announces the arrival of serious horsepower and the car gains speed at a decidedly rapid rate. Choose the manual transmission and you may have your skills put to the test, as all that power means that gear changes can arrive very quickly.

4.2-liter V8
340 horsepower @ 7000 rpm (manual), 6800 rpm (automatic)
302 lb.-ft. of torque @ 3500 rpm
EPA city/highway fuel economy: 13/20 (manual), 14/21 (automatic)


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2008 Audi S4
KBB.com Consumer Reviews

4.8
Consumer Rating
Based on 85 Consumer Reviews
Write a Review
95%Recommend this vehicle
5
84%
5
84%
4
13%
4
13%
3
4%
3
4%
2
0%
2
0%
1
0%
1
0%
Value
4.8
Performance
4.9
Quality
4.9
Comfort
4.8
Reliability
4.8
Styling
4.9

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2008 Audi S4 Style

Style
Price
Combined Fuel Economy
Horsepower
Engine
Cargo Capacity
Torque
0-60
Top Speed
Curb Weight
Quattro Cabriolet 2D
$7,476
16 MPG
340 @ 7000 RPM
V8, 4.2 Liter
10.2 cu ft
302 lb-ft
6.1 seconds
155 mph
4266 lbs
See Full Specs for All 2008 Audi S4 Styles
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2008 Audi S4 Depreciation

A 2008 Audi S4 has depreciated $1,646 or 20% in the last 3 years and has a current resale value of $6,229 and trade-in value of $2,855.

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2008 Audi S4
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2008 Audi S4 Annual Depreciation

Year
Vehicle Depreciation*
Resale Value
Trade-In Value
2022
+ $47
$7,875
$4,887
2023
$1,383
$6,492
$3,136
2024
$217
$6,275
$2,894
Now
$46
$6,229
$2,855
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2-Year Forecasted Depreciation

*Depreciation for the last 12 months of the private party resale value.

2008 Audi S4 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
4266 lbs.
EPA Passenger
72.9 cu.ft.
EPA Total Interior
89.0 cu.ft.
Fuel Capacity
16.6 gallons
Front Head Room
37.9 inches
Front Leg Room
41.3 inches
Max Seating Capacity
5
Minimum Ground Clearance
4.0 inches
Overall Length
180.0 inches
Front Shoulder Room
53.0 inches
Trunk or Cargo Capacity
10.2 cu.ft.
Turning Diameter
37.7 feet
Wheel Base
104.5 inches
Width with mirrors
75.2 inches

Exterior

Alloy Wheels
Available
Fog Lights
Available
HID Headlights
Available
Number of Doors
2 doors
Power Folding Exterior Mirrors
Available
Power Retractable Top
Available

Fuel Economy

City
14 mpg
Highway
21 mpg
Combined
16 mpg

Mechanical

Drivetrain
AWD
Transmission Type
Automatic
6 speed
Available
Recommended Fuel
Premium

Performance

Horsepower
340 @ 7000 RPM
Torque
302 @ 3500 rpm
Engine
V8, 4.2 Liter
0 to 60
6.1 seconds
Top Speed
155 mph

Warranty

Basic
4 years / 50000 miles
Powertrain
4 years / 50000 miles
Corrosion
12 years / Unlimited miles

Comfort & Convenience

  • Remote Control Liftgate/Trunk Release

Entertainment

  • iPod Connector
  • MP3 Player
  • Satellite Radio
  • CD Player

Interior

  • Leather-Wrapped Steering Wheel
  • Power Windows
  • Rear Window Defroster
  • Power Outlet
  • Tilt Steering Wheel
  • Tilt/Telescoping Steering Wheel

Seating

  • Leather Seats
  • Heated Seats
  • Heated Rear Seats
  • Dual Power Front Seats
  • Power Driver's Seat

Security

  • Alarm System

Technology

  • Bluetooth Wireless Technology
  • Cruise Control
  • Hands Free Phone
  • Navigation System

2008 Audi S4 Safety

2008 Audi S4 Safety Technology

  • Child Door Locks: Not available
  • Child Seat Anchors
  • Driver Airbag
  • Passenger Airbag
  • Stability Control
  • Traction Control
  • Driver Knee Airbag
  • Front Head Curtain Airbag
  • Front Knee Airbag
  • Front Side Airbag
  • Rear Head Curtain Airbag
  • Rear Parking Sensors
Not Available

Crash Test Rating

Provided by the National Highway Traffic Safety Administration
Driver Front
4.0
Passenger Front
4.0

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See Details
Price
$7,476
$6,105
$6,573
$6,981
KBB.com Rating
N/A
N/A
2.8
N/A
Consumer Rating
4.8
3.7
4.1
4.8
Fuel Economy
City 14/Hwy 21/Comb 16 MPG
City 20/Hwy 28/Comb 23 MPG
City 19/Hwy 29/Comb 22 MPG
City 18/Hwy 26/Comb 21 MPG
Fuel Type
Gas
Gas
Flexible Fuel
Gas
Seating Capacity5444
Basic Warranty
4 years or 50000 miles
3 years or 36000 miles
3 years or 36000 miles
3 years or 36000 miles
Horsepower
340 @ 7000 RPM
150 @ 5000 RPM
283 @ 6400 RPM
210 @ 5600 RPM
Engine
V8, 4.2 Liter
5-Cyl, 2.5 Liter
V6, Flex Fuel, 3.6 Liter
V6, 3.3 Liter
Drivetrain
AWD
FWD
FWD
FWD

2008 Audi S4 Rankings

More Audi S4 News & Information

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FAQs

Is the 2008 Audi S4 a good vehicle?

Yes, the 2008 Audi S4 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 Audi S4?

2008 Audi S4 city/highway fuel economy ratings range from 13/20 mpg to 14/21 mpg, depending on trim and equipment.

How much should a 2008 Audi S4 cost?

Used 2008 Audi S4 prices currently range from $7,476 for the Quattro Cabriolet 2D to $8,206 for the Avant Quattro Wagon 4D when purchasing from a dealership, depending on a range of factors like equipment, mileage, and condition.

What's the cheapest Audi S4?

The cheapest 2008 Audi S4 is the Quattro Cabriolet 2D, with a Kelley Blue Book Fair Purchase Price of $7,476.

Is the 2008 Audi S4 reliable?

The 2008 Audi S4 is part of the 4th-generation S4, which our owners give an above-average reliability rating of 4.8 out of 5.

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