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Porsche 911 GT3 RS looks wicked, this way comes

Those who didn't think Porsche went extreme enough with the latest 911 GT3 likely won't be disappointed when the more focused GT3 RS arrives. And as you can see from these latest spy shots, it looks like it's speeding right around the corner. Tipped to debut at the Geneva Motor Show this coming March, the new Porsche 911 GT3 RS is shaping up to be an enthusiast's dream - and with the prospect of a GT2 in doubt, could be the most hardcore Elfen in the range. Instead of the 3.8-liter flat-six in the current GT3, the new RS will pick up where the previous limited-edition GT3 RS 4.0 left off, with four naturally aspirated liters of unadulterated boxer power channeling a good 520 horses to the rear wheels. That will be a significant increase over the existing 475-hp GT3 and will match the 911 Turbo for output (if not the 560-hp Turbo S) and without any turbo lag to slow down the action, either. Whether it will keep the GT3's dual-clutch gearbox and four-wheel steering system, or ditch one or both for a more analog approach, remains to be seen, but we're holding out hope. Either way, the modifications to the bodywork ought to make the GT3 RS stand out even further and stay glued to the race track it will call home. Notice the deep front splitter scooping up snowflakes like a shovel, a massive rear wing (which may or may not be the final production version), the Turbo-spec rear end with air intakes ahead of the rear wheels, and a set of awesome-looking gills over the front wheels – all of which you can scope out in the gallery full of spy shots above.

Ford Mustang Shelby GT350R named Road & Track Performance Car of the Year

With a 526-horsepower, 5.2-liter V8 that roars to 8,250 rpm, it's really hard to consider the 2016 Ford Shelby Mustang GT350R an underdog in any fight. However, the Shelby held the lowest as-tested price and was only middle of the pack in terms of power in Road & Track's 2016 Performance Car of the Year challenge. The 'Stang's numbers clearly didn't tell the whole story about the potent coupe because Ford's muscle car grabbed the title in this year's test. A model needs to be new or significantly updated to be eligible for the honor, and R&T found an impressive slate of eight candidates this year. The challengers included the Bentley Continental GT3-R, Cadillac ATS-V Coupe, Chevrolet Corvette Z06, Dodge Viper ACR, Mercedes-AMG GT S, and Porsche Cayman GT4. The Ferrari 488 GTB was the most expensive of the bunch with an as-tested price of $347,942, which is five times more than the Shelby. Once the group was together, R&T hustled them over curving roads and on the National Corvette Museum Motorsports Park. There was a lot to love about the Shelby, even in this impressive crew. "With a flat-plane crank and Sport Cup 2 tires, the GT350R is a Mustang turned up to 11," editor-in-chief Larry Webster said in the announcement of the results. The GT350R joins some great company. Past winners include the Porsche 911 GT3 last year and the Corvette in 2013. For some fantastic photography and the complete appraisal of these performance machines check out R&T's website for the full story. Related Video: ROAD & TRACK NAMES THE FORD MUSTANG SHELBY GT350R THE 2016 PERFORMANCE CAR OF THE YEAR New York, NY (November 9, 2015) – Road & Track today named the Ford Mustang Shelby GT350R the 2016 Performance Car of the Year, beating out seven of the world's best new sports cars. The article appears in the December/January issue, on newsstands November 17, and on RoadandTrack.com. "With a flat-plane crank and Sport Cup 2 tires, the GT350R is a Mustang turned up to 11," said Larry Webster, editor-in-chief of Road & Track. "Not only does the car have soul and harness so much firepower with such ease, but the real achievement here is that it's so approachable. It's a car you can't help but love." The Mustang Shelby GT350R was the winner by a runaway vote.

Porsche Cayman GT4 looks sexy, rapid in the nude

Porsche doesn't officially have a name for its more hardcore version of the Cayman, yet. The speculation is that the coupe is called the GT4 as a little brother to the 911 GT3. However, the German sports car maker apparently is not interested in keeping the model's looks much of a secret because these latest shots show it without a hint of camouflage to speak of. The GT4 reportedly takes the GT3's ethos of more power, less weight and stickier-than-glue handling and brings it all to the Cayman. As these photos show, there's a much lower air dam up front with a cooling vent at the tip of the hood. Larger wheels are another obvious addition and are likely shod with some very sticky rubber. At the back, there's a double spoiler combining a wing and a ducktail. The power and gearbox for the GT4 remains a mystery, though. The rumor is that it uses a tuned version of the 3.4-liter flat-six in the Cayman S and GTS to make between 370 and 400 horsepower. A similar overhaul of the Boxster might be on the way, as well. A version of the convertible wearing some of the Cayman GT4's goodies was recently spotted testing. That one even had a manual transmission to make the prospects behind the wheel even more exciting.