* Audi R8 V10: This model has a 5.2L V10 engine producing 391 lb-ft of torque.
* Audi R8 V10 Plus: This model has the same 5.2L V10 engine, but it's tuned to produce 406 lb-ft of torque.
Keep in mind that these figures are for the North American market. Other markets may have slightly different specifications.
