AudiPhone is the key to the A1

Audi's rival to the Mini, the A1, has a mini secret. It has its very own mobile phone that doubles as its ignition key: the AudiPhone.Still just a con

Audi's rival to the Mini, the A1, has a mini secret. It has its very own mobile phone that doubles as its ignition key: the AudiPhone.Still just a concept, the AudiPhone – unlike other pointlessly branded, casing-made-from-a-brake-pedal, motoring tie-ins – may actually be useful.Outside it can track down your motor in a maze of parked cars and remotely start it. Inside it docks to act as the touchscreen sat-nav unit and a display for the on-board cameras. Oh and you can use it to phone people, too.The new A1 will be unveiled at the 40th Tokyo Motor Show, which revs its engines from Friday. We'll bring you more as soon as the exhaust fumes subside.EssentialsAudi A1Price: £TBAOn sale: TBAContact: AudiRelated stories:Vertu revs second Ferrari phoneSTUFF EXCLUSIVE – Porsche Design debuts phone for oligarchsMotor stuff: Holy hangover Batman, it's the Audi R8!