INGOLSTADT, Germany — Audi has pulled the wraps off its long-awaited A5 and S5 cabriolets. The new soft-top two-doors will arrive in U.S. showrooms next fall as 2010 models, replacing the current A4 and S4 cabriolets.The 2010 A5 Cabrio will offer a range of powertrain options, starting with a turbocharged 2.0 TFSI four-cylinder engine that makes 211 horsepower and 258 pound-feet of torque. The front-wheel-drive A5 cabrio 2.0 T features the Multitronic CVT, while the all-wheel-drive Quattro variant gets a six-speed Tiptronic box. Also available will be a 265-hp 3.2-liter FSI V6 rated at 243 lb-ft.The hardtop A5 coupe 2.0 T for 2010 will be offered only in Quattro guise, with a choice of Tiptronic and manual gearboxes.The all-wheel-drive 2010 S5 Cabriolet features a supercharged 3.0 TFSI V6 that delivers 333 hp and 325 lb-ft of torque. It will be mated to an S tronic seven-speed double-clutch transmission. Top speed is 155 mph.The current S5 coupe retains the 354-hp 4.2-liter V8 and a choice of six-speed manual or Tiptronic transmissions through model-year 2010. For 2011, the S5 coupe will switch to the cabrio's supercharged 3.0 TFSI V6 and seven-speed S tronic gearbox.The A5 and S5 cabrios will make their world debut in March at the 2009 Geneva Auto Show.Inside Line says: The switch from a V8 to a V6 in the S5 coupe is yet another recognition by Audi of consumers' evolving perception of the balance between performance and fuel economy. — Paul Lienert, Correspondent