Regarding really expensive cars - what about Koenigsegg Trevita?
http://www.luxist.com/2009/11/11/worlds-most-expensive-supercar-diamond-carbon-k...The same size and engines like the ordinary black carbonfibre Koenigsegg (US$ 2 million) or ordinary metal Koenigsegg CCXR (US$ 1 million). All that differs is the colour. It is white and sparkling, but not real diamonds.
For the US$ 4 million that the bodyshell costs over the ordinary CCXR, you could buy about 3600 ounces of gold. Which is about 110 kg. Goldfinger used to drive cars with golden body panels. Those are probably more expensive than Trevita.
Metal gold is not the best for all technological purposes. It is heavy and soft, unlike light and stiff carbon fibres. Then again, it is completely corrosion-proof and thanks to its softness, can be plastically wrought with less danger of cracking than copper.
Would you use metal gold in electrical wiring? (This would assure that your electrical wires will not corrode in salt water - you can drive your car in salt water like some idiot did with a Veyron in Texas, and after washing the salt out with fresh water and letting dry, the car might be as new...) Or what about the tubing of radiator?
But while gold itself is safe from corrosion, I am not quite sure whether it promotes electrolytic corrosion of metals in contact with gold.
US$ 4 millions also is about 220 000 ounces of silver, or about 6800 kg. Koenigseggs are worth their weight in silver.
Or those US$ 4 millions could buy a brand new Cessna Citation CJ1+. Empty weight about 3200 kg.
Are the diamond carbon fibre panels stronger and lighter than ordinary carbon fibre panels? No. Are they more resistant to corrosion than ordinary carbon fibre? Again no. Their sole advantage is better looks. It could as well be a paintjob.
Even an ordinary Koenigsegg, at say US$ 1 million, is worth as much as 1700 kg silver - and weighs only 1300 kg. So all Koenigseggs cost more than their weight in silver - and Trevita costs several times more.
Where is the value for money in a supercar (not limousine, a two-seater) priced in several millions US$? I suppose there are advantages of, say, newbuilt A380 Flying Palace over an old 747-200 refurbished, but what about cars?
If your most expensive plane is worth US$ 30 000, e. g. secondhand Kitfox, how much would you spend on your most expensive car?
How much would your most expensive car cost if your most expensive plane cost US$ 300 000 (like brand new Cessna 172)? Or US$ 3 000 000 (like Cessna Citation Mustang)? Or US$ 30 000 000 (like Dassault Falcon 2000)? Or US$ 300 000 000 (like an A380 Flying Palace or B747-800 BBJ)?
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