I thought the above discussion was one of the best I have read in a while, where people disagree. It is a shame when people take it personally. We need more polite discussions - well done chaps!
The diesel/petrol debate is a very interesting one. I have my feet in both camps. I have the LS400 and a Mitsubishi Grandis diesel (VW 2.0 TDI engine).
Working out economy (££££££) overall is very subjective rather than objective for most people. The figures (total £) do not always seem to add up to me. People will spend £20,000 plus on a car but choose a diesel to save £500 a year on fuel. The total cost of ownership is the bottom line but few people (including me) work that one out. When you go the pumps and it costs £85 to fill up – that is immediate and makes people wince. I have just come back from a trip to Bristol in the LS 400 (approx. 400 mile round trip). In the Lexus I get 30 mpg, in the Grandis 42 mpg. I would rather pay the extra for such a wonderful journey! Obviously if you are doing 15,000 miles plus each year, then diesel is a better option – but work out exactly how much extra it will cost in fuel. Car expenditure is not always worked out with spreadsheets but how we “feel” at the time. MPG is just one factor (though major) to be taken into consideration. I am not sure many new cars would give me such a superb ride to Bristol and back as the LS 400 – and at a fraction of the purchase price. A major mechanical breakdown can wipe out that economy at a stroke.
Diesel/Petrol – horses for courses. Just my thoughts