Classic cars sell for £12 million The annual Retromobile show in Paris took place this year from February 1 to 5. These amazing classic cars - and many more - were auctioned by Artcurial during the show on February 3, raising more than £12 million in total. With factory hard-top. Estimate: £2.33 million to £2.66 million Actual price: £3.74 million