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Category: $50,000 to $70,000 compact high-performance sport sedan
Who should buy this car: A person looking for a brutally fast ultimate touring sedan.
Comparable models in this class: BMW M3, Cadillac CTS-V, Jaguar S-Type R, Mercedes Benz C55 AMG,

2007 Audi D6 Road Test Review

Audi RS 4 is one hot sedan

PASADENA, Calif.   Audis hot new sports sedan, the RS 4, challenged my perception of sports-sedan performance with a 420-horsepower V-8, rear-biased all-wheel drive and racetrack handling that is capable of humbling many serious sports cars.


As stable at speed as any car I have tested.

During normal driving, the engine and transmission are as smooth as silk, but put the transmission selector in Sport mode and it will feel like you have a tiger by the tail.

Directional stability

Engine placement ahead of front axle centerline.

Audi does a number of things better than anyone else.  They usually have the best interiors, the best sounding engines and the prettiest engine compartments.  They also lead the field in styling.

Is the S6 worth close to $80,000?  Is any car worth that much?  Depends on who you ask.


This very special version of the A4 is a rolling billboard for Audis Quattro GmbH performance division, which did the engineering. Audi plans to import roughly 1,000 of them at a base price of $66,000. A premium package, which adds the navigation system, Bose audio system, Bluetooth system and heated seats, adds another $4,700.

2007 Audi RS4 Front SeatsThe 4.2-liter V-8 is completely new. Direct fuel injection, which Audi calls FSI, squirts fuel into each combustion chamber. More accurate fuel metering, plus the cooling effect of the directly injected fuel, enabled Audi engineers to raise the engines compression ratio to 12.5 to 1. Audi also enabled this engine to have an 8,250-rpm maximum redline, which is quite high for a production V-8. Audi said the RS 4 accelerates to 60 miles per hour in 4.8 seconds and has an electronically limited top track speed of 155 mph.

Audi invited auto writers to put the RS 4 through its paces on roads outside of Pasadena and at Willow Springs Raceway in Rosamond, Calif.

The limited production RS 4 looks like a tricked-out A4. It wears fatter wheels, bulging fenders and a more aggressive front fascia. Only the roof and front doors are shared with the standard A4 sedan. Because the V-8 engine is heavy, the hood and front fenders are made from aluminum to save weight and to improve the front-rear weight distribution. Improving weight distribution is another reason the battery is mounted in the trunk where the spare tire normally resides.

2007 Audi RS4 DashDespite the cars high state of tune, it was amazingly docile and easy to drive in the city. The six-speed manual gearbox is a breeze because the linkage is light and direct. The clutch felt equally light and easy to modulate.

Even though the RS 4 was at ease in city traffic, I could sense that it was a tad impatient, like a thoroughbred chomping at the bit. Its free spirit shined brightly as soon as we left the confines of the city and began to dive through the tight twists and turns of the Angeles Crest Highway. This legendary road that runs through the San Gabriel Mountains tests any vehicles backbone, and the RS 4 shone brightly.

Winding through the mountains at a brisk but reasonable speed was a pleasure because of the tight suspension, 19-inch wheels and Quattro all-wheel drive.

Even at a moderate pace, the RS 4 was delightfully intuitive in its reaction to input from brakes, throttle or steering. Charging through the gears was great fun not only because the gearbox ratios are so nicely spaced, but also because the engine loves to rev. I dont remember a V-8 that embraced rpm with such enthusiasm.

The Sport button on the center console enlivens the engine even more because it quickens the throttle response and opens a baffle in the muffler for an even throatier sound.

2007 Audi RS4 -- 420 horsepower V8 engineWhile the RS 4 might love to live at warp speed, public roads arent the place to experience that. The track at Willow Springs was the proper venue for some flat-throttle driving.

On the road course, the RS 4s uncanny grip on the road was immediately rewarding. There were a couple of straight sections where it was possible to reach nearly 120 miles per hour in fourth gear and the gigantic brakes were mightily impressive when it was time to slow for turns. Willow Springs is fairly fast, so most of the track was driven in third and fourth gears. The car was undoubtedly capable of taking the long sweeping turn eight at well over 100 mph, but the seat of my pants always told me to back off considerably.

The beauty of the RS 4 is its potential to pound flat-out around a racetrack one minute and cruise comfortably on the highway the next. And it does both without a great deal of compromise in either environment. Thats the ultimate compliment.

Price: The base price of the RS 4 is $66,000, not including a $720 destination and $2,100 gas-guzzler charge. The $4,700 premium package includes a navigation system, a six-disc CD changer, Homelink, automatic-dimming interior and exterior mirrors and compass, drivers side seat and mirror memory, rain sensor for wipers, upgraded Bose sound system with Sirius satellite radio, Bluetooth connectivity, heated rear seats and sun shades for the rear seat. The sticker price of a loaded RS4 comes in at $73,520.

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Engine Type 4.2 liter 32 valve double overhead cam (DOHC) V8 with variable valve timing
Horsepower 420 @ 7,500 RPM
Torque 317 @ 6,000 RPM
Fuel Recommended Premium unleaded.
Transmission 6-speed manual
Drive Type Quattro all-wheel drive
Tires - Standard 255/35ZR19 96Z performance tires
Overall Length 180.7"
Wheelbase 104.3"
Width 71.5"
Turning Diameter 36.4 ft Curb to Curb
Curb Weight 3,957 lbs.
Fuel Tank

16.6 Gals.

Miles Per Gallon (EPA) city 14 , hwy 21.
Acceleration 0 to 60 4.8 Seconds
Base Price $66,000 + Destination charge of $720 and gas guzzler charge of $2,100

2007 Audi RS4 Compact All-wheel Drive High Performance Sedan

Standard Equipment
   (partial list)

  • 420 horsepower V8 Engine

  • 6-speed manual transmission

  • Quattro permanent all-wheel drive system, with asymmetrical/dynamic 40/60 rear-biased torque split

  • Front ventilated 8-piston floating disc brakes; 14.4 in (365 mm); cross-drilled rotors; "RS" logo on calipers

  • Rear ventilated 1-piston floating disc brakes 12.8 in (324 mm); cross-drilled rotors; "RS" logo on calipers

  • Dynamic Ride Control featuring a central valve unit transferring pressure equally or side-to-side to greatly reduce pitch and roll; lowered by 30 mm compared with normal A4 suspension

  • Sport mode button on center console activates louder exhaust note and more aggressive accelerator mapping

  •  Tilt and telescopic manually adjustable steering column

  • Glass Sunroof: tilt/slide

  • 19 inch high performance tires

  • Tire Pressure Monitoring System

  • Bi-xenon headlights with automatic self-leveling

  • Adaptive Front Lighting System (pivots with steering wheel direction at certain speeds)

  • Dual-zone automatic climate control system

  • 12-way Recaro sport power front seats

  • Nappa leather seats

  • Third generation Audi Symphony radio with 6 disc CD changer and 10 speakers

  • Driver and front passenger seat mounted side airbag

  • SIDEGUARD Inflatable Curtain Airbags

Major Available Options
 (partial list)

  • Premium Package Includes: DVD-based Navigation system, Homelink universal garage door remote,  auto dimming exterior and interior mirrors, compass, memory for driver seat and mirror positions, rain sensing windshield wipers, automatic headlamps, Bluetooth capability, Sirius satellite radio, Bose premium sound system, heated rear seats, power rear sunshade and manual rear side sunshade.

  • Rear side air bags

For more information on the RS4 Series, visit 

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