Audi has introduced the TT ultra quattro concept at Worthersee this week. It weighs just 1,111 kg (2,449 lbs).

Audi has introduced the TT ultra quattro concept at Worthersee this week, a lightweight variant of the TT S quattro.

The concept weighs only 1,111 kg (2,449 lbs), making it 300 kg (661 lbs) lighter than the model is based on. It comes with a four-cylinder, 2.0-liter TFSI engine producing 310 HP (228 kW) and 295 lb-ft (400 Nm) of torque. With a power-to-weight ratio of 3.6 kg/hp, the TT ultra quattro concept sprints to 62 mph (100 km/h) in 4.2 seconds (1.3s faster) and is capable of reaching a top speed of 173.98 mph (280 km/h).

Various weight-saving measures were implemented, such as R8 GT-sourced bucket seats, CFRP rear-end, roof, center tunnel and B-pillars, along with magnesium floor and hinge reinforcements. The functional wing is manufactured from visible carbon and its base has been made as a supporting component from milled aluminum.

Further details can be found in the attached press release or related link below.

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Audi TT ultra quattro concept arrives at Worthersee [video]