ADDING a couple of doors to the Audi A3 shifts perceptions of the smallest car in the fleet. No longer a small three-door hatch with a big price tag, it is now a small five-door hatch - with a big price tag. The small Audi offers more practicality without losing significant style when compared to the three-door, while maintaining its excellent quality levels. In turbo form, it also provides invigorating performance.