That survey falls down on 2 counts according to the SMMT the following cars were the top 10 in the Uk in 2009
Ford Fiesta … 117,296
Ford Focus … 93,517
Vauxhall Corsa … 84,478
Vauxhall Astra … 67,729
Volkswagen (VW) Golf … 57,187
Peugeot 207 … 48,037
Mini … 39,866
BMW 3 Series … 39,029
Vauxhall Insignia … 36,040
Ford Mondeo … 34,418
Audi A3 is never mentioned and it has never ever figured in the top ten of UK sales. In fact production of the A3 has been suspended since January as there are so many cars in stock accross the dealer networks.
As is the case with AT and surveys, never let the facts get in the way of a good story.
Incidently thats the reason the A3 is cheap to insure there aren't many of them so the statistics that insurance companies base premiums on look brilliant for these cars.