Rolls-Royce cars are designed to be the last word in luxury, allowing you to be chauffeured around in crisp comfort. Today, however, modern Rolls-Royce cars are more enjoyable to drive than ever and the clients are younger, which means more owners are looking to improve the car's looks, sound, and performance. Enter aftermarket tuner Renntech, which is offering a new upgrade package for the Wraith and Dawn that gives both models a sportier stance and more power.

In stock form, the Dawn's 6.6-liter twin-turbo V12 produces 563 hp and 605 lb-ft, whereas the Wraith produces 624 hp and 605 lb-ft. Thanks to an ECU remap, the Florida-based tuner has managed to increase the output by 95 hp and 90-lb-ft of torque, which improves performance and throttle response without sacrificing the superb ride quality or adding any unwanted noise inside the cabin. As a result, we think you'll definitely want to sack your chauffeur and sit in the driving seat.

As well as improving the performance, Renntech has added a lowering module that improves the handling and makes the cars "sit properly" according to Renntech's President, Hartmut Feyhl, allowing the client to adjust the ride height with "millimeter precision." It also works in harmony with the factory speed-dependent ride adjustments.

Sport mufflers also enhance the cars' growl to remind you there's a powerful V12 under the hood. Pricing details for Renntech's tuning upgrade haven't been released, but if you have to ask then you probably can't afford it since both cars start at over $300,000.