Modified

The somewhat ungainly proportions of BMW's not-a-sedan, not-an-SUV X6 have been the subject of intense debate. It's not ugly in the traditional sense, but it's not especially attractive either. AC Schnitzer has nevertheless decided to take on the challenge of tuning the X6, focusing its efforts on...

While German tuners generally tend to stick with a single marque, tinkering with the likes of BMWs, Audis, Mercedes or Porsches to the exclusion of others, American tuner Vorsteiner works with all three marques, and its latest creation has tuners from around the world sitting up and taking notice...

Tuner cars are often works of art, flights of fancy or out-and-out racers, but rarely are the upper echelons of performance-tuned cars graced by models intended as daily drivers. Techart's latest modifications to the 2010 Porsche 911 Turbo are an exception to that rule, however--if you can afford...

Audi tuning specialist APS has released a new supercharger kit for the V-8 powered R8, offering the power of the bigger V-10 model but at a much lower cost. Performance, reliability and a stock style feel were major factors in the extensive research and development program carried out by APS and...

Ford is going after a new generation of performance fans with its latest 2011 Mustang. In fact, a new breed of Mustang will be taking center stage in a Ford ad campaign designed to attract even more sports car fans to the iconic brand. As part of the campaign, the TV ad also includes an appearance...

The twin-turbo 2008 Lamborghini Gallardo is edging up on its big cousin, the Bugatti Veyron, in top speed.

April 17 marked the 46th anniversary of the Ford Mustang and in honor of that milestone SMS Supercars, Steve Saleen's post-Saleen Inc. venture, launched a new modified version of the latest 2011 Ford Mustang GT on that very date. Falling under the SMS Signature Series range of cars, the latest...

BMW used last month’s 2010 Geneva Motor Show to unveil a new range of performance accessories to be sold under the “BMW Performance” line of factory backed modifications. The BMW Performance line was originally introduced a couple of years back for the 3-Series and was quickly expanded to...

The Mercedes-Benz SL65 AMG Black Series is one car not in need of an upgrade but that hasn’t stopped the guys at Brabus from increasing the car’s performance to the level of the world’s top supercars. In stock form the potent GT already develops a hefty 661 horsepower but after some Brabus...

Oberlin, Ohio isn’t the likely site for a company specializing in high-output power upgrades for exotic cars, but the state is home to Switzer Performance Innovations (SPI), a company churning out mega horsepower cars. Started by Tym Switzer several years ago, the tuning firm is now offering...

Alpina's range of souped-up, custom BMWs is the stuff of legend. Since the late 1970s the custom house has taken on the best of the BMW lineup, including the 3-Series, 6-Series, 7-Series, 8-Series and the Z1, Z4 and Z8 roadsters, as well as the 5-Series, the latest version of which, the 2011 Alpina...

The Nissan GT-R is the quintessential Japanese sports car--high-tech, efficient and with styling that could only have come from the Land of the Rising Sun--but when it comes to performance tuning of the latest R35 model, America is king. AMS Performance, based in Chicago, Illinois, currently builds...

BMW will be expanding its performance lineup at next week’s 2010 New York Auto Show with the launch of the all-wheel drive variant of the Alpina B7 sports sedan. Joining the regular B7, the all-new 2011 BMW Alpina B7 xDrive, as it’s officially titled, will again be offered in standard-...

Popular Ford tuner Roush has teamed up with auction house Barrett-Jackson and together the two have created a new limited edition Ford Mustang that will be built in a run of just 50 cars, 25 of which will be 2010 Ford Mustangs and the other 25 being the new 2011 model. A concept version of the new...

A high-revving, sweet-sounding V-8 is a marvelous thing, and BMW's 4.0-liter V-8 in the M3 is a prime example. The tuners at Dinan, however, weren't satisfied with the factory-supplied 414 horsepower and thus have boosted output of the car to a tire-vaporizing 527 horsepower and 407...

Tuner cars are often examples of the worst sort of overkill, but occasionally a car will sneak through with less-than-typical appearance modifications and a monstrously re-engineered heart. Such is the case with the Vath V58K, an extreme take on the SLK55 AMG. The Germans at Vath decided that...

Remember the Ferrari P540 Superfast Aperta? If not, we’re sure you at least remember the multi-million dollar Pininfarina designed P4/5 based on the Ferrari Enzo. Both cars were special one-offs designed and developed exclusively for their respective well-heeled owners, and if you too fancy...

RUF's work on the Porsche 911 is the stuff of legend.

The Bentley Shooting Brake will be available for limited order.

Not so long ago the idea of a hybrid powertrain in a sports car was anathema to enthusiasts. But after last year's Formula 1 season, the debut of cars like the Tesla Roadster and Audi's series of all-electric e-tron concepts, as well as the wider acceptance of hybrids in general by the buying...