The 2011 Camaro Convertible, starting at $29,150, has a 312 horsepower Direct Injection V6 offering up to 29 MPG highway. The upscale SS has a 426 horsepower 6.2-liter V8 with an EPA-estimated 24 MPG highway. The available automatic transmission version of SS features Active Fuel Management and offers 25 MPG highway while delivering 400 horsepower. The Camaro comes in 4 trim levels: 1LT, 2LT, 1SS and 2SS and arrives in Chevrolet showrooms in February.