Audi has officially unveiled the all-new Prologue Avant Concept ahead of its debut at the 2015 Geneva Motor Show. The new German prototype is described as a stylish wagon that represents a new interpretation of the Avant philosophy. 

Exterior
 
The front part of the car is dominated by the new Matrix Laser headlights and by the sporty air intakes. We are moving further back to see a unique body line with 22-inch alloy wheels. At the rear, we have seen 3D taillights and a tailgate mounted spoiler.
 
Interior 

Inside the cabin, the new Audi Prologue Avant Concept comes with an elegant look and mix of materials including aluminum, wood and Unikat leather. The buttons have been replaced with touchscreen displays and the 4 passengers have 4 individual seats.
 
Engine 

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Under the hood of the 2015 Audi Prologue Avant concept is a plug-in hybrid power train. It has a 3.0 liter TDi engine and an electric motor that is fed by a 14.1 kWh battery. As a result the car can run from stand still to 100 km/h (62 mph) in 5.1 seconds and the fuel consumption is pretty impressive: 1.6 liters per 100 kilometers (147 mpg).

Source: Audi