Audi will launch the A1 compact car in 2009 at the Frankfurt Auto Show. A Cabriolet version will also be unveiled in October 2011. The future A1 will be placed above the TT, but under the A3, and wants to be the cheapest Audi in the line-up. The A1 Convertible will compete with BMW 1-Series Convertible, Mini Convertible and Volkswagen Eos.