The Nissan Skyline GT-R Nismo Z-Tune is the final model of the Nissan Skyline GT-R (R34) which was developed by Nissan's Nismo division to celebrate their 20th anniversary. Only 20 units were produced. The car was built on used Skyline GT-R V-Spec II models with less than 30,000 km (18,641 mi) of mileage and was a showcase of Nismo's engineering technology gathered from motorsport events such as the 24 Hours of Le Mans and Super GT series.