The gt40 can beat this, but in 2004 z06 corvettes are supossed to have 529hp., but we never know witch one will be better untill it comes out. What do you think. 2004 will be a great year for American muscle, because the gt40 will be out and so will the new vipers, new corvettes, gtos, mach 1s, firebirds/camaros(hopefully), c6-rs, new mustangs, chargers(from what I heard), and probably lingenfelters and hennessys for the new corvettes and vipers. Does anyone know if there's going to be a 2004 chevelle, because there's a website for the 2004 corvettes that says 2004 corvette and chevelles, but it doesn't give any info. on the 2004 chevelle. Sorry if I didn't spell chevelle right I don't know how to spell it.