Well with talk of the all-alloy DOHC 5.4 litre V8 for the AV, should be promising even more power, but it seems like HSV are ready for it with the 6.2 litre V8, 350kw. HSV are not quiet about that either, just check www.hsv.com.au
and have a look at the Q's & A's. Maybe Ford's answer to that will be putting in an all-alloy version of the 6.8 V10 with DOHC etc etc???
Then Ford can always look to Aston Martin to tune it to put out a high power - per litre ratio????
By the way, I'm not biased towards GM or Ford. I love both!