More than 2325 vehicles and $157 million changed hands at the 2011 Scottsdale Auction Week in Arizona.
The vehicle commanding the highest price was a 2006 Ferrari FXX Evoluzione, which sold for $US2.09 million – an auction record for the model.
The FXX Evoluzione – powered by a 641kW 6.3-litre V12 engine and capable of reaching 400km/h – was one of 30 only produced by Ferrari.
The top 10 vehicles sold at Scottsdale all broke the $US1 million barrier:
Hagerty Insurance CEO, McKeel Hagerty, told The Arizona Republic the strong results suggested the market had bounced back after a slow 2010.
“Scottsdale sales are really the bellwether of the collector-car market,” Mr Hagerty said.
“This sets a really good tone for the hobby this year.”
The rebound reflects sales of new luxury and sports cars in Australia over the past 12 months.
Aston Martin (up 63.5 percent), Bentley (up 56.8 percent), Ferrari (up 21.2 percent), Lamborghini (up 73.1 percent), Porsche (up 23.5 percent) and Rolls-Royce (up 177.8 percent) were among the brands to benefit most from the improved economic conditions in 2010.