Mileage: 138,469 miles MPG: 14 city / 21 hwy Color: Silver Body Style: Sedan Engine: 8 Cyl 4.2 L Transmission: Automatic. Description: Used 2006 Audi S4 with All-Wheel Drive, Leather Seats, Heated Seats, Navigation System, Fog Lights, 18 Inch Wheels, Rear Heated Seats, Heated Mirrors, Premium Sound System, Recaro Seats, and Sport Seats. The average Audi S4 quattro Cabriolet AWD costs about $10,566.43. The average price has decreased by -29.6% since last year. The 18 for sale on CarGurus range from $4,995 to $14,995 in price. The S5 is propelled by a 4.2-liter direct-injected V8 that churns out 354 hp and 325 pound-feet of torque. A six-speed manual transmission is standard, and a six-speed automatic with manual shift The B6/B7 S4 offers V8 power, comfort and handsome looks for a low price. Here's what you need to know before taking the plunge V8 Audi S4: 9 Things To Know Before You Buy | News | 3 days ago · Get KBB Fair Purchase Price, MSRP, and dealer invoice price for the 2004 Audi S4 Avant Quattro Wagon 4D. View local inventory and get a quote from a dealer in your area. V8, 4.2 Liter Audi RS4 (2012 – 2015) At A Glance. Great performance from 450PS normally aspirated V8 engine. Quattro as standard. Huge amounts of grip and traction. Lacks the raw edge of the previous RS4. While Audi has produced fast S4 models recently, there had not been an RS4 since the much-loved second generation model which went off sale in 2008. DS77.