2013 Porsche 911 Carrera 4s Cabriolet on 2040-cars

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Motor Trend holds World's Greatest Drag Race for the third time

As part of Motor Trend's Best Driver's Car competition, the buff book has held its third iteration of the World's Greatest Drag Race. With an airfield and a dozen of the world's finest performance cars at its disposal (oh, and a helicopter), the MT team did what any good group of enthusiasts would do, and tried to figure what car could cover a quarter mile the quickest. World's greatest drag race, indeed.
The contestants, as MT points out, cover a huge variety of engine types, drivelines, aspiration types and body styles, making for a genuinely varied and interesting field of competitors. Here's the full list of cars taking part.
Aston Martin Vanquish

Porsche reportedly working on new turbocharged flat-four boxer engine?

These days, we've seen just about every automaker dropping cylinders in an effort to appease tightening fuel economy and emission standards - and Porsche is no exception. Nearly three years after introducing an all-new V6 powerplant under the front hood of its Panamera sedan (launched with a range of V8 engines) comes word that Porsche is working on an all-new turbocharged flat-four boxer to replace the flat-six engines mid-mounted in its Cayman and Boxster models.
Specifics have yet to be learned, but reports say the engine is a derivative of the current 3.8-liter six (shown above) found under the rear decklid of the Carrera S, yet with two fewer cylinders. Fitted with a turbocharger, direct-injection and the automaker's VarioCam Plus, the new all-aluminum 2.5-liter flat-four will likely develop upwards of 350 horsepower and 360 pound-feet of torque. Redline should be about 7,500 rpm. Initial indications say that Porsche will only offer the new engine with its seven-speed PDK dual-clutch automatic, tuned to take advantage of the low-end torque, but a traditional six-speed manual gearbox has not been ruled out. Despite the loss of two cylinders, enthusiasts will likely embrace the new engine as it promises to be lighter, more fuel efficient and more powerful than the 2.7-liter and 3.4-liter sixes in the Cayman/Boxster today.
Even though Porsche has been using Volkswagen Group engines for years (e.g., Cayenne V6, Cayenne Diesel and upcoming Macan), all indications are that the new flat-four will not be shared. Instead, it will be kept in-house for the automaker's sports cars and possible future fitment in an entry-level 911.

2016 Porsche 911 GT3 RS prowls into Geneva with biggest NA engine in the 911 range [w/video]

We've been waiting for the debut of this road-going and race-ready Porsche 911 GT3 RS for quite some time now. As is typical for high-profile sports machines, the new 911 has been foreshadowed with spy shots and information leaks aplenty, all pointing to this grand day at Geneva. Here she is. Just a glance at the duct-sliced bodywork and massive rear wing will tell you that this Porsche means business, but let's look at its bona fides. The heart of the matter, under that short rear deck, is the largest-displacement and most powerful naturally aspirated engine in the 911 family, with 500 horsepower and 338 pound-feet of torque developed by the 4.0-liter flat-six. That hoss of an engine is mated to a newly developed version of Porsche's PDK dual-clutch gearbox – with functions such as "paddle neutral" that effectively works like depressing the clutch on a standard manual, and a Pit Speed button for on the track. Working in concert, engine and trans allow the GT3 RS to sprint to 60 miles per hour in 3.1 seconds, hit a quarter mile in 11.2, and lap the Nurburgring Nordschleife in just seven minutes, 20 seconds. (That 'Ring time makes it the fastest current 911 around the benchmark course, and five seconds faster than the current 911 GT3 – so quick.) Weight has been saved via exotic materials; the car sports a magnesium roof and carbon fiber for the trunk and engine lids. Overall the RS is 22 pounds lighter than the GT3, but also boasts a lower center of gravity. As we said at the top, there's a wide, low and aggressive body kit on the GT3 RS, all engineered with racing performance in mind. That huge rear wing is balanced in the front by a deep chin spoiler, and the front wheel arches have been punctuated with vents that help to increase downforce on the front axle. The roll cage is the most obvious interior modification to let one know that this is a racing tool, but Porsche has also slathered the space in Alcantara and installed carbon-fiber bucket seats (based on those found in the 918 Spyder) to drive the point home. The cost of such racing glory will be steep at $175,900 plus a $995 destination charge, but not out of the scope of the current ask for the 911 range, when you consider that a Turbo S runs over $180k. Look for 911 GT3 RS deliveries to start in July of this year in the US, and for track days to be more competitive for the addition. Porsche 911 GT3 RS: the Ultimate 911 for High-Performance Drivers Atlanta.