While VW’s 270-horsepower Golf R hatchback is hardly underpowered, the engineers over at the German tuning firm Siemoneit Racing felt like it could use some extra ponies. Siemoneit Racing calls its tuned VW Golf R the ‘Black Pearl’for obvious reasons- and it offers customers a choice of two performance packages. The first boosts the 2.0-liter turbocharged four-cylinder engine’s output from 270HP and 320Nm to 355-horses and 485Nm (357.7 lb-ft) through thanks to the updated ECU software, custom exhaust and a new air intake system.
Never mind the body of the current, 6th generation Golf featured on these test two Volkswagen prototypes snagged by our scoop photographers in Germany; these are test mules for the upcoming Mk7 Golf GTI and its more powerful sibling, the Golf R. 
Despite the fact that both vehicles look alike at first, a closer glance shows that the GTI is the one with the twin tailpipes while the R features a quad exhaust outlets. Another important detail worth mentioning are the rear wheel arch extensions that suggest a wider rear track for both models.
Volkswagen will participate with three 450-hp Golf24 cars in one of the most grueling endurance races in the world, the famed 24 hours of Nurburgring that will take place this weekend at the renowned German circuit.
