Surprise upset in the Luxury Car category was Audi's new A4/A5 range pipping the segment's star performer, BMW's 3 Series, in the popularity stakes. The larger, more aggressively styled A4/A5 range released last year is topped by hot S models and coupe versions, providing lots of choice for buyers interested in the Ingolstadt brand's midsizers. A significant rework under the bonnet for better handling and smooth diesel options were also likely clinchers with buyers in the very tightly contested segment.