Here is a compiled top 10 most expensive cars of all time.
1962 Ferrari 250 GTO

Price sold: £29.3million
1954 Mercedes Benz W196

Price: £23.5million
1956 Aston Martin DBR1

Price: £17.5m
1955 Jaguar D-Type

Price: £16.8million
1932 Bugatti Royale Kellner Coupe

Price: £15.9million
1939 Alfa Romeo 8C 2900B Lungo Spider

Price: £15.3million
1962 Shelby 260 Cobra

Price: £10.6million
1968 Ford GT40

Price: £8.8million
1931 Duesenberg Model J Long Wheelbase Coupe

Price: £8.5million
1982 Porsche 956

Price sold: £7.9million
Beautiful list. I'm surprised the Cobra sold for more than the GT40. I wonder how much the year has to do with the price.