The 2006 Civic launches in the U.S. this fall and will include a 4-door sedan, 2-door coupe

and Si Coupe, Hybrid and a natural gas version, the GX. The concept is powered by a 200

hp, 16-valve, DOHC, I-VTEC engine with an 8,000 rpm redline. Getting power to the road

is helped by a helical-type limited slip differential