Welcome to the site 
I'm guessing that the 2 cars won't compare on fuel economy either 
so skip the v6 and get a diesel like mine

Not even close on fuel econonmy

lol, even under 'enthusiastic' driving

I'm still in the high 40's mpg, high 60's mpg when driving 'conservatively'

( I often do, I must be growing up!)
and it's only £35 a year road tax
It's got a/c , leccy windows n power steering but it's not exactly luxurious.
But, it does leave almost anything behind from a standing start, the torque is excellent and it's a nice wee cheap thrill hehe
I used to have a mk2 Mondeo Ghia X, all the toys, leather etc etc
ST kit, lowered 55mm on Spax, 18" BK 399's and a de-cat no silencer custom full zorst system
(the real reason I don't want diesel, you can't get a nice note from them, *Not a Boy Racer, Honest!!!!*

)
This thing had presence coming out of it's... well, u get the point, and it had been *cough* fiddled with so it wasn't slow either
I'll put some pics up If I can fiind the file...
This is why I want an Elite, because they're big, comfy, filled with Toys and with the right touches, can be made to look stunning, and a 3.0 V6 ain't exactly gonna struggle up a hill
I really hope I won't be dissapointed with 'off the mark' pace from an Omega compared to The Fiest :-/