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Porsche 911 Turbo and Nissan GT-R Nismo star in World's Greatest Drag Race 4

We love Motor Trend's annual World's Greatest Drag Race video. Now back for its fourth appearance, the idea of lining some of the world's fastest cars up for a ten-wide, straight-line, full-throttle run is, well... it's pretty freaking badass.
The lineup this year boasts some impressively fast cars to be sure. The group of ten includes the following darlings: Alfa Romeo 4C, BMW i8, BMW M4, Chevrolet Camaro Z/28, Ford Fiesta ST, Jaguar F-Type R Coupe, Nissan GT-R Nismo, Porsche 911 Turbo S, Subaru WRX STI and, last but not least, the Volkswagen GTI. Give us any one of those for the weekend, and we're happy to take the keys.
It must be said though, that for a publication that draws as much water as Motor Trend does, there are some big cars that we might expect to be here instead. The Lamborghini Huracán or Ferrari 458 Speciale would have added some exotic flare to the list, and the omissions of the Chevy Corvette Stingray (for the second year in a row) and the Dodge Challenger Hellcat are real head-scratchers.

2017 Ford GT spied in the raw

The Ford GT supercar is finally going outside to play, and it has been captured for the first time prowling the streets near Ford's compound in Dearborn, MI. Due in late 2016, the GT has been one of Ford's most closely guarded projects and was developed under a veil of secrecy. The prototype revealed at the Detroit Auto Show stunned enthusiasts, and these shots illustrate that it's making the leap to production reality. As our spy shooter wryly notes, the mule captured in these photographs looks like a Mad Max prop. It's colorless, is missing key body parts – note the ringless taillights and lack of a rear bumper or diffuser. It also looks to be even lower to the ground than the concept from the Detroit show. It appears to have different mirrors and windshield wipers. The lack of some body panels also calls out the exhaust pipes, which look like tail guns in these shots. Otherwise, this test car looks just like the auto show star, and sans paint it manages to appear even more sinister. Though these spy shots indicate the GT is on track for production, Ford has been pretty up front about what the car will be when it arrives in showrooms. We know it will have a twin-turbo EcoBoost V6 paired with a seven-speed dual-clutch gearbox. It will make extensive use of carbon fiber and feature a driver-oriented, contemporary-styled interior. Canadian company Multimatic will build the GT. The Le Mans-inspired supercar is the standard-bearer for Ford's renewed performance push. The automaker plans to roll out at least 12 sporting cars by 2020 as it looks to lure new buyers to its fold. Ford also using developments from these high-end cars to improve its lineup, and will it spread aerodynamics and materials technologies across its portfolio. "It's another proof point about how serious we are in developing innovation through performance," Ford product chief Raj Nair has said. Related Video: Featured Gallery 2017 Ford GT Spy Photos View 25 Photos Related Gallery Ford GT Concept: Detroit 2015 View 45 Photos Image Credit: Chris Doane Automotive Motorsports Ford Coupe Performance Supercars

A cool boost to turbocharger performance

Since the advent of the forced-induction engine, we have been looking for ways to get every drop of performance we can. There are many approaches to getting additional power using better intercooling, water injection, or even adding nitrous oxide. One take on a short instant burst of power is being researched by Mahle and involves providing supercooled air to an engine, which allows it to burn a leaner fuel mixture and produce more power. The supercooling idea is not new and was examined by Ford in 1993 on the Mustang Mach III concept car, then brought up again in 2003 with the SVT F-150 Lightning concept. Ford called its system the SuperCooler; it was designed to work with any turbocharged or supercharged engine equipped with a water-to-air intercooler. The system on the Lightning concept used a small tank of antifreeze that was hooked up to the truck air conditioning compressor. The air conditioning compressor cooled the antifreeze down to about 30 degrees. The other side of the tank was hooked up to the air-to-water intercooler, which usually had a temperature over 100 degrees. Once the antifreeze was circulated from the tank into the intercooler, it would lower the intercooler temperature and provide for a cooler, denser air charge into the engine; the result was around 50 extra horsepower for a burst of about 30 seconds to a minute, depending on the size of the tank. The system for the Lightning was to be offered as a $750 option and would have been targeted towards drag racers and the like, as it could be used for a run down the drag strip and then re-cooled by the time the truck was back in line. The system was fairly non-intrusive – it only weighed about 25 pounds and did not require a new compressor or intercooler. But as with many concepts, it was ultimately scrapped. The technology was always stuck in the back of my mind, but with larger and more powerful engines being produced it could not find its place. With the advent of new fuel economy standards, we have seen small-displacement turbocharged engines pop up and they seem like the perfect candidate for this type of technology. Ford's EcoBoost 1.0-liter three-cylinder turbocharged engine, as used in the Fiesta and Focus, is one such candidate for this technology. It would add a negligent amount of weight but could provide a boost of 10 to 20 horsepower when needed, like merging onto the highway or catching up to traffic.