2005 Porsche Cayenne S Sport Utility, Awd, Black On Black, 2 Sets Wheels Tires on 2040-cars

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40+ cars that barely avoid the gas guzzler tax

The Gas Guzzler schedule, with mpg ratings and charges that haven't changed since 1991, lays out which fuel-swillers owe what to Uncle Sam.
I started thinking about the "Gas Guzzler Tax" - considerably less well known as The Energy Tax Act of 1978 - when I was driving Dodge's new Challenger SRT Hellcat last week. Unsurprisingly for a car that can burn 1.5 gallons of gas per minute at max tilt, theoretically able to empty a full tank of premium in about 13 minutes, the Hellcat will be subject to the Gas Guzzler Tax schedule when it goes on sale.

Porsche bringing Macan S Diesel to US instead of 4-cylinder [w/poll]

When Porsche unveiled the new Macan at the LA Auto Show, it announced two powerplants for the US market, both of them twin-turbo V6s: the Macan S equipped with 340 horsepower from its 3.0-liter engine, and the Macan Turbo with 400 horses from 3.6 liters. But those aren't the only engines Porsche will offer in its new compact crossover. Porsche is also offering the Macan S Diesel overseas with 258 hp, and reports have since indicated that a pair of four-cylinder models on their way: a 2.0-liter turbo four with 280 hp and four-pot turbodiesel of the same capacity with an as-yet undisclosed output.
Now Car and Driver is reporting that while those four-cylinder engines won't be making the transatlantic voyage to our shores, Porsche will offer the aforementioned Macan S Diesel in North America beginning in early 2015, nearly a year after the gas V6 versions arrive.
The 3.0-liter turbodiesel V6 is based on the same engine found in the Cayenne Diesel and the Audi Q5 TDI on which the Macan is based. Of course, its 248 hp is substantially less than the 340 ponies in the Macan S, but its 413 pound-feet of torque outshines not only the 339 lb-ft in the Macan S but also the 406 lb-ft in the Macan Turbo. Acceleration times, however, suggest the Macan S Diesel is still slower, with a 6.3-second run to 62 mph than neither the Macan S (5.4 sec) or Macan Turbo (4.8). The good news is that the Macan S Diesel is tipped to undercut the price of both, dropping the oil-burning crossover's MSRP below that of the $49,900 starting price for the Macan S and the $49,600 for the base Cayenne. If that C/D prediction comes to pass, that will make it the Macan S Diesel most affordable Porsche sold.

McLaren P1 vs Porsche 918 vs Ducati 1199 Superleggera in epic standing-mile drag race

We live in a high-tech supercar renaissance, with the Porsche 918 Spyder, McLaren P1 and Ferrari LaFerrari all duking it out for performance supremacy. All three members of this power trio place the engine behind the driver and use some kind of hybrid assist. However, each one finds a slightly different way to make that setup work. While all of the tech is insanely cool, let's just admit that we are all really wondering which one is the quickest and which is the fastest. Autocar aims to find out in a new video pitting two of them against a surprise challenger in the standing mile.
Unfortunately, the race is missing the Ferrari, despite Autocar's best efforts. So instead, it has another limited-edition, high-performance vehicle from Italy in the form of the Ducati 1199 Superleggera. The bike has just two cylinders, but at 1.2-liters of displacement, it makes over 200 horsepower, and all that gumption is packaged into a magnesium monocoque body with carbon fiber bodywork to keep weight low. Granted, the cycle is going up against the 875-hp Porsche and 903-hp McLaren, but traction, aerodynamics and gearing all play a part in this fascinating video.
There's no sense in ruining the winner before watching, but Autocar teases that the finish is one of its closest drag races ever. Check out the video to find out just what that means.