For those of us with a little too much time on our hands, are there any opportunities left in an otherwise highly efficient market ? Might I buy a convertible in the winter, sell it in the summer ? Buy at BCA , sell though eBay or something more high profile. I've always thought there is massive pent up buying energy at April time, perhaps one could play that. That said I seem to recall you told a terrible story about a car sale going wrong and causing a trader friend endless legal and reputational problems. In short I have some time, a love of cars, some funds and an addiction to man maths. If your answer is 'look elsewhere' you might be doing me a favour.