Both sedan and coupe shared the same 3.5-liter V6, but the sedan originally made less power (260 hp with four doors, 280 with two doors). They were made even at 280 hp for 2005, and both models when equipped with the six-speed manual option got a boost to 298 hp. These horsepower numbers dropped to 293 and 275, respectively, for the '07 coupe because of a change in SAE testing procedures -- actual output did not, in fact, change.