Q7 4.2 TDI quattro is a diesel engine SUV. It has seating capacity of 5 people. It is quite spacious as we look it from inside.Audi Q7 4.2 TDI Quattro gets the most powerful 4134 cc, 8-cylinder, 4-valve Quattro engine . As far as the fuel efficiency is concerned, Audi Q7 4.2 TDI Quattro delivers mileage of 7.7 kmpl in city conditions, however the auto-giant claims that the car delivers 10.2 kmpl . it comes with fitted with an automatic transmission. But it meets the drivers expectation when it comes to performance and handling.The best part of this car is its spacious and super rich interiors that enhance your overall driving experience.It is highly advanced in terms of features and gets high level comforts too. Buyers may complain of its sober looks that lack the sporty impressions compared to the rivals. Added to this, the boot size is also little compact.