because its 09 and there making everything na to get good gas milage and still have sum good hp.... the G8 V6 makes more hp out of a 3.6l than the gtp's 3.8l sc which is sad but i guess if they really wanted to they could of up the hp more on the gtp by changing sum stuff. like the cobalt ss that lil 4banger sc or turbo puts more than the gtp maybe not the sc but close but its a lil car and thats a reason why its a bit faster. i think the gtp would of been sweet with 295hp stock not to far off from the gxp