I drive an old Ford Falcon XG ute.
Like Mike's Falcon I have converted it to LPG dual fuel.
I drive it pretty hard most of the time, it returns 14l/100km (20mpg).
Engine is the fabulous 4.0 litre inline six and is rated at 148Kw (almost 200hp)
Running on LPG means that my 550km week commuting to work costs me around $45. It has around 230,000km on the clock which is F.A. for one of these things...
Jo's Drive is an old Fairlane, also on LPG.
This is the largest Aussie car in the Ford range & it returns around 11l/100km (26mpg).
A tank of LPG costs around $40 & will get us 450-500km, the engine is a later evolution of what is in the ute & is rated at 165kw (220hp). Also has around 230,000km on the clock
My last Falcon had 450,000km when I sold it, the one before that had 350,000km on it (but the odo did not work for seven years of the ten years we owned it!)