The car that really steals the show at Audi’s Paris Auto Show booth is the TT Sportback Concept, a four-seat, five-door fastback version of the TT which hopefully will be built.

Sized similarly to an A3 Sedan, the TT Sportback is 4.47 meters (176 inches) long, 1.89 meters (74.4 inches) wide, and 1.38 meters (54.3 inches) high, with a wheelbase of 2.63 meters (103.5 inches). Compared to the latest generation TT Coupe, that makes it 290mm (11.4 in) longer, 60mm (2.4 in) wider but surprisingly, 30mm (1.2 in) less tall than that of the Coupe. The wheelbase was also increased by 120mm (4.7 in).

The TT Sportback uses the same exact dashboard from the production sports car, including the 12.3‑inch digital instrument cluster. The only difference inside is that it has two more individual seats at the back.

Based on the same MQB platform as the TT, the TT Sportback study is powered by a new EA888-based 2.0-liter TFSI turbocharged petrol rated at 400PS (395hp) and 450 Nm (331.9 lb‑ft) of torque between 2,400 and 6,000 rpm. Mated to a seven-speed S-tronic twin-clutch gearbox that sends power to all four wheels via the quattro system, the five-door model is able to reach 100km/h (62mph) in just 3.9 seconds while returning an average fuel economy of 7.0/100km (33.6 US mpg) with CO2 emissions of 162g/km.

The other star of the Audi stand in Paris is the TT Roadster, the latest iteration of the drop top TT. As the Coupe, it is offered with a high-powered TTS version motivated by a 2.0-liter TFSI petrol producing 310PS (306hp) and 380Nm (280 lb-ft). The 0-100km/h (62mph) sprint takes 4.9 seconds, while top speed is limited to 250km/h (150mph).

The TT Roadster is also available with the rest of the engine lineup from the Coupe, including a 2.0-liter TDI Ultra diesel with 184PS (181hp) and 380Nm (280 lb-ft), which averages 4.3l/100km (54.7US mpg or 65.7mpg UK) and emits 114g/km of CO2. There’s also an entry-lever petrol engine – the 2.0-liter TFSI rated at 230PS (227hp) and 370Nm (273 lb-ft).

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