A quick google.
2 Engines. 2L FSI Turbo & 2L TDI.
The 2.0 TDI has several tuned variants:
From wikipedia:
As of 2010, the engine range consists of two 2.0L Turbocharged Direct Injection (TDI) common rail diesel engines which is taken from the Volkswagen_Transporter_(T5), it has been tuned for more torque but less power; the entry-level version produces 90 kW (122 PS; 121 hp) which develops a maximum torque of 340 N·m (250 lb·ft) from 2000 rpm. The top of the line bi-turbo version produces 120 kW (163 PS; 161 hp) which develops a maximum torque of 400 N·m (300 lb·ft) from 1500 rpm.
Fuel consumption in a combined cycle format is as low as 7.6 L/100 km (37 mpg-imp; 31 mpg-US) on the rear wheel drive variant to 8.1 L/100 km (35 mpg-imp; 29 mpg-US) on the 4Motion theoretically giving the Amarok a 1,000 km (620 mi) range before filling up for fuel.
The VW Commercial (SA) has useful specs
http://www.vwcommercial....s/amarok/specifications/