dickytim: Holden Commodore wagon, but a low km VZ SS would be the pick.
Very long but mountains of boot space and a 5.7l V8 that is surprisingly economical.
Plus with a tune and exhaust you are easily pushing 450bhp and running 13 sec 1/4 miles all day every day.
My little yellow s4 can do 11s 1/4 miles and thats just a little v6 turbo :)
They are good cars the ol Holden but even though they may have 450HP when tuned they are still dead slow.