Time to update
my post on this thread!
Some time back I shortened the XG by about 8 inches when I didn't pull up as quick as the car in front of the car in front of me.
So I updated to a BA Falcon ute

DOHC 4.0 litre gives me 182kW (244hp) and 380 Nm torque (280 lb/ft). This too I converted to LPG/Dual fuel but this time I fitted a Vapour Sequential Injection LPG system which is just outstanding.
Not to be outdone, Jo as given the Fairlane the flick & now drives a Nissan Pathfinder.

4.0 litre V6 petrol, 198kW rocket ship, and, you guessed it, converted to LPG/Dual fuel with VSI injection. Love it.