source: Audi AG First of its kind premium mobility service in South-east Asia Flexible time periods ,wide selection of models and exact billing by the hour Singapore/Ingolstadt - The brand with the Four Rings is now launching the successful premium mobility concept Audi on demand in Singapore. Sophisticated drivers and Audi aficionados can access a wide selection of the latest Audi models at the touch of a button. The duration of use for each vehicle can be as short as fo...