The base Sebring Convertible’s 2.4-liter four-cylinder produces 173 horsepower and 166 lb.-ft. of torque. It’s good on economy (20 city/29 highway), but way short on oomph. The flex-fuel 2.7-liter V6 in Touring models improves power and torque (189 hp and 191 lb.-ft.), still has decent economy (18 city/26 highway) and can run on up to 85 percent ethanol, but it’s still sluggish. The 3.5-liter V6 in Limited models offers up 235 horsepower and 232 lb.-ft. of torque., It’s easily better than the other two engines, yet even with this combination drinking 16 city and 26 highway, it’s only adequate. The base and Touring models have power routed through four-speed automatics; the Limited gets a six-speed with Chrysler’s AutoStick manual control.