Audi marked its presence at the Auto Expo 2012 with utmost sincerity. The German auto major displayed its new sedan, Audi A3 e-Tron with great pomp and show. The Audi A3 e-Tron concept sedan was unveiled by the gorgeous Bollywood superstar, Katrina Kaif, which was the perfect choice by Audi India. this four-seater notchback sedan is said to be highly fuel efficient and the 4.0 litre of twin turbo V8 engine churns out great amount of power thereby providing a delightful driving experience to the owner. The exact launch date for the new concept sedan is not revealed yet and the price has also been kept under the hood.