Back in 2009, racer and drifter extraordinaire Vaughn Gittin Jr. unveiled the Mustang RTR-C, a custom Mustang that came with a carbon fiber body and 550 horsepower hiding under its hood.

And now that the 2013 Ford Mustang has been unveiled, Gittin Jr. is back with the second-generation Mustang RTR. Details behind the project are still being kept tightly under wraps, but we do expect the muscle car to carry a similar design theme to the original carbon fiber-clad model.

What’s new for the 2013 Mustang RTR is that it will be made available on the Mustang V6 with an option to put a supercharger system to drive up the car’s performance credentials a few levels past the standard model. The only thing that was released were a couple of rendered photos of the 2013 Mustang RTR, which, judging by its look, is a barnburner of a project.[...]

The one-off Lamborghini Aventador J Speedster will find its lucky owner very soon. But for the rest of the world’s population that will never get to own a supercar as unique as this one, UK design house Prindiville Design has released a rendering of what they would do to the Aventador J Speedster if it was given an aftermarket conversion of sorts.

According to Prindiville, the work on the Aventador J Speedster begins with replacing the car’s original panels with something along the lines of carbon fiber. From there, the UK tuner would add a host of interior features, including dressing up the cabin in black leather and Alcantara while also adding a five-inch LCD TV screen, a DVD player, satellite navigation, and bespoke software featuring maps, setups, and telemetry.

Prindiville would also take in the task of upgrading the Aventador J’s braking system with new ceramic discs and an adjustable suspension. Finally, the UK tuner would give the Italian supercar a little electric tweaking, taking the car’s 6.5-liter V12 engine and increasing its output from the standard 700 horsepower all the way up to 805 horsepower, allowing the car to hit 0-62 mph in just 2.5 seconds with a top speed of 220 mph.

Of course, all of this is only theoretical because unless the owner decides to send the Avetador J Speedster, we’ll never get to see it actually happen.[...]

Nope, this is not the Ultima GTR! This is the Ultima GTW - a model based on the GTR, but with some impressive engine modifications! A standard GTR is powered by a 6.3-liter Chevy V8 producing 534hp and 528 lb-ft of torque, while the GTW has received a new 7.2 liter Dart Aluminum SBC engine from Peter Knight Racing that delivers a total of 648 HP and 616 lbs-ft of torque!

The project was started Wayne Lansdowne, who wanted to enhance the qualities of the existing Ultima GTR. When the project stalled out, George Williams took over and finished the build in an exquisite fashion.

The car’s body was modified by Steve Smith Custom and features a single piece carbon rear wing, modified headlights with new LED lights, and different carbon fiber elements, including new front and side splitters. The GTW now sits on a new set of Magnesium center lock Dymag one piece wheels finished in black, just like the entire body.[...]

The diesel-powered Nissan Qashqai 1.5 DCi is at Superchip's center of attention as the British tuning brand has created an ECU remap to boost the crossover model's performance.

In factory trim, the Qashqai's Renault-sourced 1.5-liter turbocharged four-cylinder diesel develops a peak output of 108bhp (110PS) at 4,000 rpm and a maximum torque of 240Nm (177 lb-ft).[...]

As the Nissan Qushqai is one of Europe’s favorite cars, it comes as no surprise to us that a mainstream ECU optimizer like Superchips has targeted it. The British Aftermarket ECU remap providers now offer an upgrade for the 110PS Nissan Qashqai 1.5 DCi engine which supposedly doesn’t decrease the economy or the drivability. The n Superchips’ ‘Plug-in and Go’ DIY programing boosts the powe... [...]

After previewing the new Cayster GT 670 program for the Porsche Cayenne at last year's Essen Motor Show, German aftermarket specialist Hofele-Design has now launched the tuning package onto the market.

The exterior upgrades are the main event for this package with Hofele-Design having developed a new 14-piece body kit.

Among other parts, the package includes a newly styled front bumper with LED daytime running lights, wheel arch extensions, a new vented hood with a power dome, side sills, boot spoiler, roof wing, and a new rear bumper that houses a diffuser and quad pipes.[...]

The latest generation Cayenne is the first one from the German manufacturer with proper styling and proportions to its design. It sheds its predecessor’s awkward and bloated looks and now it’s one of the best looking SUVs in its class. With the aid of some ‘bolt-on’ tuner bits it can now be made to look even better and meaner. The ‘bolt-on’ bits come courtesy of a tuning kit by G... [...]

The 6.2-liter Mercedes V8 is widely acknowledged as being one of the best V8 engines ever built. Its use in so many of Mercedes’ cars over the years has, indeed, confirmed it. Even in its weakest state of tune, in the C63 with 457 hp, it’s still an awesome powerplant. German tuner HMS-Tuning have decided that 457 hp is definitely not enough and the car deserves more, so they’re offering a supercharger kit and... [...]

We all know that the Nissan GT-R is a special car, from the concept which stands behind it, to the way in which it’s built and the way it drives. As always, though, there’s room for improvement, and the GT-R shown here is just breathtaking, and the first thing you notice is the Verde Ithaca paintjob which coats the body and calipers. The car features a custom widebody kit and has been given a wide set of black HRE whee... [...]

While other tuners are busily preparing the next big thing in terms of design for the brand new M-Class, revealed last year in Frankfurt, Prior Design came to the rescue of the owners of the old one, the W164 model. The body kit is made using package suitable for all M-Class (W164) models.All the parts are made from quality Dura-Flex FRP (Fiber Reinforced Plastic), a material that is easier to paint to match to the body color.... [...]