I have, and much prefer the ford product, apart from the V8 noise (not that impressive stock anyway) FG turbo is a nicer car. When the turbo isn't active she munches of bugger all fuel. Surprised I've said that, but the xr6t is a really nice car.
the average combine fuel usage of the SSV vs the XR6 T is about 1 litre per 100ks and thats an independent evaluation not looking at ford and holden figures. 11.7 for the xr6t and 12.8 for the SSV (SS is lighter so i'd imagine it's closer to the xr6t again)
As for blown v6's how is impulses car not relevant his car is a sv6(190kw) with a supercharger and all the trimmings? i know it's not an sidi but i don't think they would make much more power then the port alloytec blown because they have a very high compression and this would mean lower boost.
i have nothing against the alloytec i love mine to bits but alloytecs killing v8s isn't going to happen.
hell xr6t's killing v8s doesn't happen look at the fastest v8 commodores in aus and the fastest xr6t i think you'll see there a v8 running a bit faster.
if you liked the FG so much when you drove it why did you buy a VE sv6?
Also XR6(6spd auto) n/a vs SV6 sidi as independently tested both have a combined fuel rating of 10.1, 5spd xr is 10.5.
btw i have nothing against modding v6's just read my sv6 thread you'll find my sv6 is modded pretty much to the max. I just don't want to give people high expectations. my sv6 is a great car very fast very enjoyable.