Try looking at the instantaneous when your thrashing it, mine dropped to 8!!
Obviously the 6 speed 04 onwards are better on fuel, but not as quick in take off.

Lovely cars, I'd definately get another, mine was a late 03 5 speed in black with red leather$

The 3.0 v6 is miles apart from the 2.5 shite, very rev happy and power all the way through the rev range without the crank pulley or water pump problems aswell.

Looks like a cracking example you've got aswell