Audi S8 (D3) 2008

[DigitalBaka]

There is already one for the 3rd gen D4 but I figured this needs some love as well. 5.2 FSI V10...yes, ma'am!

The S8 high-performance sports variant, now called the "Audi S8 5.2 FSI quattro" was announced in the last quarter of 2005 and full production started in June 2006 and ended in September 2009.[16]

The S8 includes subtle detailing to distinguish it from its related A8. The trapezoidal "single-frame" grille bears the characteristic Audi "S model" vertical strut detail which are highlighted in a chrome finish. "S8" badging is displayed front and rear, whilst "V10" badges are displayed on each front wing above the side-repeater indicators. The rear boot-lid incorporates a subtle rear spoiler, and the rear is finished with four chromed oval exhaust tailpipes. Adaptive Xenon-plus high-intensity discharge (HID) headlamps include static turning lights, along with "swiveling" dynamic cornering lights. Daytime running lamps are five light-emitting diodes (LEDs) incorporated into acloverleaf designed reflector, incorporated into the main headlamp housing.

The D3 series S8 features a 5.2-litre all-aluminium alloy four-valves per cylinder V10 petrol engine. This engine is a derivative of the Lamborghini Gallardo's original 5.0-litre Lamborghini V10,[17] which was also developed under the Volkswagen Group ownership. On this Audi-only variant, compared to the Lamborghini engine, it features a longer stroke and wider bore—which increases the displacement of the engine, and produces more torque at lower revs, making it more suitable for the larger and heavier full-sized luxury Audi application. It produces 331 kW (444 hp) of power and 540 N·m (398 lb·ft) of torque. By having its bore whittled out an additional 2 millimetres (0.1 in), displacement in the S8 application increases from 5.0- to 5.2-litres. The engine also features Audi's direct-injection system, called Fuel Stratified Injection (FSI).[18]

A sports-optimised ZF 6HP26-A61 six-speed tiptronicautomatic transmission with "Dynamic Shift Programme" (DSP) and "sport" mode, with steering wheel mounted paddle-shifters, is the only offering. Output is transmitted via Audi's quattro all-wheel drive system, initially using the Torsen T-2 50:50 dynamic centre differential, and from 2007 for the 2008 model year, utilising the Torsen T-3 asymmetric dynamic centre differential, with a "default" torque distribution of 40 percent to the front axle and 60 percent to the rear.

The S8's top speed is electronically limited to 250 km/h (155 mph). Audi's factory performance claims indicate a 0 to 100 km/h (0 to 62 mph) time of 5.1 seconds whilst consuming 98 RONunleaded petrol. The S8 has similar performance to Audi's own top-of-the-line A8 L W12, though the W12 is more expensive, has more torque, and built on a longer wheelbase.[18] Compared to the A8 L W12, the S8 has sportier mechanical features such as a firmer suspension, larger wheels, and ceramic brakes. The shorter wheelbase and 10-cylinder engine save weight for better handling, but at 5.4 seconds from 0-60 mph the S8 trails the W12.[19][20][21] The S8's top speed is electronically limited to 250 kilometres per hour (155.3 mph).

The S8, like its related A8, utilises a multi-link suspension layout front and rear, with pressurised air springs. However, for the S8, the effective spring and damper rates are noticeably firmer, along with re-engineered suspension mounts.

The brake system consists of radially ventilated discs all round. The discs are clamped with gloss-black painted dual-piston calipers up front, and a single-piston sliding caliper at the rear, coupled to an electro-mechanical parking brake. A Bosch ESP 5.7 (later upgraded to ESP 8.0)electronic stability control, with ABS, brake assist, EBD complete the brake system. Optional "Audi ceramic" carbon fibre-reinforced silicon carbide (C/SiC) composite front and rear brakes are available, which use radially vented, and floating SGL Carbon discs, with anthracite grey painted twelve-piston fixed Brembo monobloc alloy calipers. Standard alloy wheelsconsist of 20-inch "S design" alloy wheels.