Audi is launching the next variant of its
top-of-the-line model. With the R8, the brand has established itself at
the forefront of high-end sports cars from the very start – and now
comes the R8 V10. Its 5.2-liter, ten-cylinder engine churns out 386 kW
(525 hp) and 530 Nm (390.91 lb-ft) of torque, which makes for
breathtaking performance. With superior Audi technologies such as
quattro all-wheel drive, the lightweight aluminum body, the innovative
all-LED headlights, and its striking design, the R8 V10 takes pole
position against the competition.
The R8 V10 is the result of cumulative
know-how from Audi’s string of Le Mans victories. Its naturally
aspirated engine combines racing technology such as dry sump
lubrication with FSI gasoline direct injection. The ten-cylinder design
is the perfect synthesis for impressive top performance, mighty pulling
power, and low weight. Starting in 2009, this engine will also prove
its potential on the world’s racetracks – in the new R8 racing car Audi
is developing for customer teams in conformance with the GT3 rules.
The
V10 engine in the production sports car will be almost identical in
construction to the one in the racing version. Its displacement is
5,204 cc, at 6,500 rpm it delivers 530 Nm (390.91 lb-ft) of torque, at
8,000 rpm its power tops out at 386 kW (525 hp).
The specific
power output is 100.9 hp per liter of displacement – and each hp has to
propel only 3.09 kilograms (6.91 lb) of weight, because the Audi R8 V10
in the version with the six-speed manual gearshift weighs only 1,620
kilograms (3571 lb). The engine accounts for 258 of these kilograms
(569 lb) – that’s only 31 kilos (68 lb) more than the V8.
The
Audi R8 5.2 FSI quattro rockets from zero to 100 km/h (62.14 mph) in
3.9 seconds. In the version with the sequentially shifting R tronic it
reaches 200 km/h (124.27 mph) in another 8.1 seconds. Even then its
propulsive power hardly lessens: it’s sufficient to reach a top speed
of 316 km/h (196.35 mph). The immense force, the spontaneity and the
thrust of the acceleration, plus the sound of the engine – all these
impressions coalesce into a breathtaking sports car experience. The V10
plays a concert with growling bass tones and powerful high notes, which
grows into a grandiose fortissimo as the engine revs up. This sonorous
acceleration doesn’t reach its limit until 8,700 rpm.
The
5.2-liter powerplant uses direct injection according to the FSI
principle developed by Audi. A common rail system injects the fuel into
the combustion chambers with up to 120 bar of pressure. Direct
injection reduces the susceptibility to knocking and provides a certain
amount of cooling through the evaporation of the fuel, which in turn
supports a high compression ratio of 12.5:1. This in turn contributes
to superior performance and improves fuel economy. The R8 V10 with R
tronic gets by on an average of 13.7 liters per 100 km (17.17 US mpg).
For maximum dynamics: low center of gravity engine
The
technical refinements of the long-stroke ten-cylinder engine include
dry sump lubrication, which allows the engine to be mounted low within
the chassis. The wide cylinder angle of 90 degrees also makes for a low
center of gravity. The crankcase is a high-strength aluminum-alloy
casting produced in a complex process. The connecting rods are made of
forged steel, the pistons of aluminum. The four camshafts are
chain-driven and each is adjustable through 42 degrees. This provides
great latitude in controlling the valve timing. In combination with the
straight, flow-optimized ducts of the intake manifold, this improves
the charge throughout the entire speed range.
The R8 5.2 FSI
quattro has a six-speed transmission. A precise and smooth-shifting
manual transmission comes as standard equipment. The sequential R
tronic is available as an option. The high-tech gearshift conveys an
authentic racing feel – with the rocker switches at the steering wheel
and the short shifting times of usually less than one-tenth of a
second. When the driver actuates the Launch Control program by pressing
a button, the R8 V10 takes off in a vehement quick-start with
electronically controlled tire slip – both with the R tronic and with
the manual transmission.
A contributing factor to the wide lead
in traction and driving safety of the Audi R8 V10 over the competition
is quattro all-wheel drive – it’s the superior technology especially
for a high-performance sports car. Four powered wheels get more grip
than two. They enable the driver to step on the gas sooner when coming
out of a curve. It’s not only the traction that benefits, but also the
transverse dynamics and the stability.
44 to 56 percent – the ideal axle load distribution
The
Audi R8 chassis offers both dynamic performance and astonishing levels
of comfort on long distances. This high-performance sports car from
Audi eagerly responds to any steering action with instant ease,
achieves lateral acceleration of up to 1.2 g, and handles any situation
with superb driving safety. Its mid-engine design provides an ideal
axle load distribution of 44 to 56 percent.
The wheel suspensions
on dual aluminum wishbones front and rear – a classic racing technology
– are optimized for neutral self-steering characteristics. Even more
than in the eight-cylinder R8, this setup is designed for maximum
performance. 19-inch wheels equipped with tire pressure monitoring
display are standard equipment. Their 10-spoke Y design is exclusive to
the R8 V10. Tire sizes are 235/35 front and 295/30 rear.
The car
features a high-end damper technology as standard: Audi magnetic ride
adapts the characteristics of the suspension in milliseconds to the
nature of the road surface and to the driving style. Suspended in the
oil of the shock absorbers are tiny magnetic particles which, when a
voltage is applied, rearrange themselves so as to slow down the flow of
oil through the valves.
In the R8 V10, deceleration is provided
by an extremely muscular braking system – eight brake pistons at the
front and four at the rear grasp the brake disks, which are ventilated
and perforated to ensure unimpeded heat transfer. The brake disks on
the front axle have a diameter of 380 millimeters (15 in); the rear
discs span 356 millimeters (14 in).
The R8 5.2 FSI quattro is
optionally available with a ceramic brake system whose disks are made
of a composite material containing high-strength carbon fibers and
abrasion-resistant silicon carbide. These are especially light: their
combined weight is nine kilograms (19.84 lb) less than the weight of
equivalent steel disks. The ceramic brakes can easily cope with the
harsher requirements of racing, won’t corrode, and have a typical
service life of 300,000 kilometers (186,400 miles). Their calipers are
painted charcoal gray and emblazoned with the inscription “Audi
ceramic”.
Typically Audi: Sharp lines and an elegantly curved roof
The
wide, full shape of the R8 5.2 FSI quattro seems to hug the road. The
brawny proportions and prominent wheel wells underscore its potential.
The high-precision styling of the lines and the elegant curve of the
roof are typical Audi features. A continuous contour optically connects
the front, the wheel wells, the sides and the rear. Located well
forward, the cab visually expresses the mid-engine design. The vertical
air scoops (sideblades) on the sides are also indicative of the engine
location. The massive aluminum gas cap is mounted flush within the
right sideblade.
The design of the Audi R8 has already impressed
experts, as evidenced by the double victory in the “World Car of the
Year Awards 2008”. In the ten-cylinder model, the styling has been
sharpened up even more.
The front air inlets, which feed air to
the coolers, and the lip of the front apron are painted in high-gloss
black. The number of cross-braces has been reduced from four to two.
The vanes of the single-frame grille have a striking chrome finish.
A
very distinctive highlight of the R8 V10 are the all-LED headlights as
standard equipment. Audi is the world’s first automaker to use LEDs for
the high beam, low beam, daytime running lights, and turn signals. Each
headlight integrates 54 of these high-tech light sources. With a color
temperature of 6,000 Kelvin the LED light closely resembles daylight,
which is less tiring to the eyes in night driving. Further advantages
of the LEDs include brilliant illumination, low energy consumption, and
a virtually unlimited service life.
Special details also
distinguish the body of the R8 V10. Its sideblades are more accentuated
than in the eight-cylinder version. The side sills are more striking
and wider; the exhaust grilles at the rear windows have a matt aluminum
look. Through the large rear window, the ten-cylinder engine is clearly
visible in its consummate technical beauty.
When in motion, this
Audi high-performance sports car creates a downforce that keeps it in
firm contact with the road – thanks to a rear spoiler which deploys
automatically at 100 km/h and the fully enclosed underbody, which
terminates in a sharply upward-curved diffuser. The dominant color at
the rear end is high-gloss black, including the settings of the LED
tail lights. The air outlets at the rear end also have only two
cross-braces, and the exhaust system terminates in two large oval
tailpipes.
Audi sets the example – in body weight and rigidity
The
body of a sports car must be especially lightweight and rigid. Audi
meets these requirements with the technology of the Audi Space Frame
(ASF) and its high-tech aluminum construction. The body-in-white of the
R8 V10, which includes an engine frame made of ultra-light magnesium,
weighs only 210 kilograms (463 lb), and the quality of its lightweight
design – the relation of weight to torsional rigidity – is the best in
the sports car segment. The body is composed of profile extrusions,
sheet aluminum and very complex gusset castings, all held together by
99 meters (325 ft) of welding seams, 782 rivets, and 308 special screws.
The
interior of the R8 V10 provides a unique racing ambience at the luxury
level. Its dominant element is the so-called monoposto – a wide arc
that contains the steering wheel and the cockpit. As always in an Audi,
the workmanship is of the highest quality. The surfaces of the
dashboard and doors are lined with fine materials and adorned with
precisely stitched decorative seams. Many customizing solutions are
available: Audi supplies leather in a wide range of colors, packages
with a carbon and piano-lacquer finish, or a made-to-measure luggage
set. quattro GmbH, which has developed and is producing the R8 V10,
also provides solutions for unconventional requirements.
The
great everyday utility of the Audi R8 V10 is based in part on its
spacious interior made possible by the long wheelbase of 2.65 meters
(8.69 ft). Drivers and passengers of any size will always find a
perfect sitting position. Visibility too is surprisingly good. Slender
hinge pillars optimize the obliquely forward field of view. Another
advantage for convenient everyday use is the luggage space: 100 liters
(3.53 cu ft) fit under the front hood, another 90 liters (3.18 cu ft)
can be stowed behind the seats. There is also room for two golf bags.
The
Audi R8 5.2 FSI quattro combines its colossal performance with a
generous complement of standard equipment. Highlights include heatable
seat covers made of Fine Nappa leather, a driver information system,
the navigation system plus and the Bang & Olufsen sound system
along with deluxe automatic air conditioning and an alarm system. The
instruments and the gearshift knob are decorated with red rings; the
footrests and the rocker switches of the R tronic have an aluminum
finish.
The list of options includes other highly attractive
features – such as the Audi parking system advanced with its integrated
rearview camera or numerous Audi exclusive customization options.
Various leather packages provide a luxurious touch, while the bucket
seats from the Audi exclusive program bring a highly concentrated
racing atmosphere into the R8 V10.