Audi is clearly intent on expanding the TT family beyond the familiar coupe and roadster. Previously there were the TT S Shooting Brake and Offroad concepts, and now the TT Sportbrake. Making its official debut at Paris, the TT Sportbrake is essentially a stretched and widened TT coupe complete with 21-inch oversized wheels. Audi claims this concept "unites two concepts to form a new member of a potential TT family." Basically, Audi is out to gauge overall public and media reaction for this before a decision is made regarding production.

Power comes from 2.0-liter turbocharged four-cylinder that's good for 400 horsepower and 332-lb-ft of torque. 0-62 mph happens in just 3.9 seconds, and power is sent to that familiar Quattro all-wheel-drive system via a seven-speed S-tronic dual-clutch gearbox. The exterior design is pretty much what we figured a four-door TT would look like. The front end features large air inlets with honeycomb inserts. The newly designed headlights with separators also feature a unique daytime running light signature. In each headlight there's a module comprising four powerful diodes that generate a beam of light that illuminates several hundred meters, and supplements the LED high beam.

The interior features a 12.3-inch display and plenty of Alcantara, leather, and aluminum trim. We just wonder if this were to make production whether Audi would have a hard time differentiating it from its own A3 sedan. Definitely something to think about, but we like what we see here. Will Audi expand the TT family into new production models? We'll just have to wait and see.