The
wildest A4 returns only as a wagon.
Audi's
high-performance wagons are icons. The mid-1980s saw the 100/200 Turbo Wagon,
and things got really wild with the RS2 launched in 1994. It was an
over-the-top variation of the Audi 80 Avant created with assistance from
Porsche, powered by a 315-hp version of Audi's 2.2-liter turbo five-cylinder
and wearing wheels from the 964-gen Porsche 911. (Its side mirrors and front
turn signals were from the 993, too.) The RS2 was followed in 1999 by the first RS4, which packed
a 380-hp, 2.7-liter twin-turbo V-6. Audi launched the second-gen RS4 in 2005 with a naturally
aspirated, extremely high-revving 4.2-liter V-8; this powerplant was engineered
by Wolfgang Hatz, now head of Porsche R&D. For the first time, Audi offered
a sedan and a convertible in addition to
the station wagon. The previous-gen RS4 was sold until 2009. One year later,
the RS5 coupe was launched on a
platform shared with the current A4, as a sort of RS4 stand-in.
But
now the RS4 returns—but only as a station wagon, to be launched at the Geneva auto show next month. The engine remains
true to its immediate predecessor, as the car is powered by a 4.2-liter
direct-injected V-8 that produces 450 hp at 8250 rpm. Maximum torque stands at
317 lb-ft and is available from 4000 to 6000 rpm. The performance is more than adequate:
Audi claims a 0-to-62-mph sprint of 4.7 seconds; we’re guessing that’s at least
a few ticks on the conservative side. Top speed is limited to 155 mph unless
you pay to relax the governor, at which point the fun ends at 174 mph.
The
torque delivery is rear-biased, at 40/60-percent; the self-locking crown-wheel
center differential can adjust this ratio almost instantly between 70/30 and
15/85 according to road conditions and driver input. A sports differential that
can distribute the torque between the rear wheels is optional. While the
last-gen RS4 was available only with a slick-shifting six-speed manual, the new
model comes only with a seven-speed dual-clutch automatic transmission. The
driver can use paddles or leave the shifting up to the car entirely. In the
standard Drive Select system’s more-aggressive settings, the car will blip the
throttle to provide rev-matched downshifts.
When
braking on surfaces with different friction coefficients, the speed-sensitive
electromechanical power setup will provide additional input beyond that of the
driver to maintain stability. The car naturally sits lower than its lesser
siblings, and rolls on 19-inch forged-aluminum wheels and 265/35 rubber as
standard; 20-inch wheels fitted with 265/30 tires are optional. The standard
front brake rotors are squeezed by eight-piston calipers, but the piston count
goes down by two should you spec the optional carbon-ceramic discs. The options
list also includes dynamic steering with a speed-sensitive steering ratio and
an electronic damper system. There is at least one nod to those who prefer a
more pure driving experience: The stability-control system can be switched off
entirely.
Audi
has modified the exterior with a wider body that ever-so-slightly recalls the
Ur-Quattro of 1980, and the rear end is punctuated by two large, oval exhaust
tips. The front and rear bumpers and the roof spoiler are unique; the front is
characterized by large, functional air intakes and a silver-painted splitter.
The interior is fitted with sports seats; the standard interior trim is carbon
fiber, but it can be replaced by piano black, stainless-steel mesh, or aluminum
in one of two finishes (brushed matte and something called “Race”). Finally,
there’s a flat-bottomed steering wheel.
The
price is a cool €76,600 in Germany, which includes a 19 percent tax. That's
just about as much as the RS5 coupe. Its competition includes the Cadillac CTS-V wagon and the
Euro-only Mercedes-Benz C63 AMG wagon.
Will we get the RS4 Avant in the U.S.? Probably not. Even the regular A4 Avant
will take a back seat in favor of the A4 Allroad. Bummer