tiptronic automatic transmission (parts code prefix: 01V) became available for the first time as an option. The B5 S4 claims acceleration from in 5.7 seconds, and has an electronically limited top speed of , making it both the quickest saloon/sedan in the Audi model line, and among the quickest saloon/sedans in the world at that time. B5 suspension, brakes, wheels & tires The B5 S4 is fitted with 4-wheel independent suspension. The front suspension is a multi-link design with four individual control arms per wheel. The rear suspension is an unequal length double wishbone design; the lower control arms are mounted to a subframe which also carries the differential housing. Shock absorbers, coil springs, and anti-roll bars are fitted front and rear. The B5 S4 brake system consisted of radially ventilated discs, in diameter by thick up front, and by at the rear. Two-piston Lucas HP2 brake calipers at the front (with four pads per caliper), with Lucas single-piston sliding brake calipers at the rear. A Bosch ABS 5.3 four-channel Anti-lock Braking System (with Electronic Brakeforce Distribution (EBD) and Electronic Differential Lock (EDL) - and later with ESP or Electronic Stability Programme), coupled with a vacuum servo completed the system. Standard wheels were Audi's die-cast aluminium alloy six-arm 'Avus' 7.5Jx17H2 ET45 wheels, shod with 225/45 ZR17 performance tyres. B5 colors & optional equipment Available exterior colors included Brilliant Black, Laser Red, Light Silver, Cactus Green, Santorin Blue, Hibiscus Red, Casablanca White, Pearlescent White, Imola Yellow (spicy mustard), and Nogaro Blue. The last two colors were exclusive to the S4 model. Interior leather was available in Onyx or Silver. Available options included: Bose premium sound system Audi Navigation System 6-disc CD changer Hands free Motorola cellular telephone Premium Package: Sunroof, HomeLink transmitter, Auto dimming mirrors Cold Weather Package: Heated front seats, Heated outside mirrors, Expandable ski sack Enhanced Sport Package: Alcantara seat inserts, Silver aluminum belt line trim or Carbon Fibre trim (on late 2000-2001 models), Aluminum mirror housings (on 2001 & 2002 models) The Sport Package replaced the wood-grain belt line trim with silver aluminum trim, and the wood grain finish around the shifter with black plastic. The Alcantara seat inserts were silver (on Onyx leather). With the black, white, or blue exteriors, the inserts were also available in blue Alcantara. On the early 2000 models, the Alcantara inserts in the rear seats did not fully extend forward to the