Ultima GTR has been on my shopping list for quite some time too ever since I first saw it with a twin turbo lexus engine.
http://www.youtube.com/watch?v=P3y7qbSCB44
http://www.youtube.com/watch?v=td04k...watch_response
It would be interesting to see what the SLC 0-60 time is too compared to the Ultima.
http://www.ultimasports.co.uk/pdf/Poster2.pdf
I think I would have to go LS7 a cam and multi throttle body Jenvey set up.
The good thing about the Ultima is that it only takes 6 minutes to build.
http://www.youtube.com/watch?v=jh0NXzITtg4&feature=fvw
I'm off to the shed to polish something up.