The sportiness of the Audi TT redesigned: The Audi TT Sportback concept show car - Sporty elongated sculpture: Concept study reinterprets Audi TT - Board Member for Development Prof. Dr. Hackenberg: “TT Sportback concept unites two concepts to form a new member of a potential TT family” - Four-cylinder TFSI provides 400 hp, maximum torque 450 Nm (331.9 lb-ft) A speedy sports car with four seats and five doors – Audi is presenting the TT…