Interesting stuff badger.
I feel that you bought your Hemi at the right time. Whilst the running costs on a big petrol car can be scary (or less scary with an LPG conversion), the biggest cost of running a car is depreciation.
I can imagine that in a couple of years time, you will be able to start picking up mint condition, large petrol engined cars for chump change, and then just have the scary fuel consumption and increased VED to worry about.
