I don't really have a dream car - there are cars out there that I like more than others such as the Pagani Zonda, Bugatti Veyron or TVR Sagaris - but none of those cars are all obtainable to me and therefore not a 'dream'. The Lamborghini Reventon was a car I wanted very much and thought I never had a chance of getting. I went to a dealership in San Diego a few months ago and there was one for sale, as well as 3 Veyron's. Cars don't just seem exclusive to me and I've driven a lot in the last month or so (pereparing for a car review site) - my next door neighbour has a Ferrari 430, but my Camry is funner to drive than it. The Lamborghini Gallardo is excellent to drive, but waaaaaaaaaay to noisy to just drive around town. The only supercar I would consider buying at the moment is the 2009 Corvette. But I'd rather get a Mercedes A-Class -> Just so much more funkier.
This is the fastest, most powerful and most expensive production car in history. The Bugatti Veyron 16.4 will do 253mph, has an 8 litre 16-cylinder engine producing in excess of 1000bhp, and a price of £810,000.