Audi TT 2.0L TDI diesel sports car
With the diesel engine on board, the quattro coupe will sprint to 100km/h from rest in a brief 7.5 seconds and achieve a top speed of 226km/h. The roadster is just a tenth of second behind accelerating to 100km/h and its top speed is rated at 223km/h. Despite the impressive performance numbers and AWD traction, the coupe and roadster return fuel consumption figures of 44.38mpg and 42.77mpg (5.3L/100km and 5.5L/100km) respectively. The engine also meets the threshold values of the upcoming Euro 5 emissions standard, emitting just 140g of CO2 per km. There’s no word if a FWD model will be offered and only a six-speed manual is available for now.
The four-cylinder TDI engine was actually updated slightly for the TT, being fitted with a new dual-camshaft design. This helps to ensure a wide power band for the compact engine, delivering its peak power at 4,200rpm and peak torque from a low 1,750rpm. The engine also features the latest in diesel technology including eight-hole nozzle piezo injectors pumping fuel at 1,800bar, electrically adjusted turbo vanes, and the aforementioned dual-camshaft design. The combined result is a high (for diesel) maximum engine speed of 5,000rpm, improved thermodynamics in the combustion chambers, and petrol-like smoothness at idle.