2010 Porsche Cayenne Awd 4dr Tiptronic 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.

Le Mans-winning Porsche 956 up for auction at Pebble Beach

Collectors looking to get their hands on a piece of racing history will want to be in Monterey this August. That's where Gooding & Company will be auctioning off the genuine Le Mans winner you see here. One of the finest examples of the Group C era, this 1982 Porsche 956 won the 24 Hours of Le Mans in 1983 – the eighth time the German marque won the legendary French endurance race, en route to the record seventeenth win it racked up at La Sarthe this year. This 956 was the third of only ten examples made, complete with Rothmans livery and unimpeachable history. It debuted at Le Mans in 1982, where it placed second behind another Rothmans-liveried 956, and went on to win the next four races it entered. The following year, the two Porsches switched places in the winner's circle at Le Mans, securing this car's place in the annals of racing history. Now set to cross the auction block at the Pebble Beach Concours d'Elegance, Gooding projects this most historically significant Porsche to fetch between $7,000,000 and $9,000,000 once the gavel drops. According to the Sports Car Market database, that would make this the most valuable Porsche ever sold at auction, eclipsing the 1972 Porsche 917/10 Can-Am racer that Mecum sold for $5.83 million in Monterey three years ago. It would also far exceed the ˆ2.35 million ($3.15m) paid at RM's auction in Paris last year for another Rothmans-liveried 956 that completed the 1-2-3 finish at Le Mans in '82. That is, assuming 956 #003 sells this time: the last time it crossed the auction block, it failed to sell after a high bid of $2 million. Le Mans-Winning Rothmans Porsche 956 Roars its Way to Gooding & Company's Pebble Beach Auctions SANTA MONICA, Calif. (June 19, 2015) – Gooding & Company, the official auction house of the Pebble Beach Concours d'Elegance®, is thrilled to announce the addition of one of the most important and desirable competition cars of all time to its Pebble Beach Auctions. The 1982 Porsche 956, chassis 003, was the outright winner of the 1983 24 Hours of Le Mans and the most successful example of this revolutionary and dominating series of Group C cars. The sale of this factory Porsche racing machine presents an incredible opportunity to own a significant piece of motorsport history and it is sure to be a highlight of Gooding & Company's internationally renowned auction, taking place on August 15 and 16, 2015 in Pebble Beach, California.

Xcar tests Cayman GT4, wonders if it's finally knocked off big brother

Should you buy a Porsche Cayman and save a whole butt-load of money, or just get a 911? That question, friends, has never been as difficult to answer as it is today, where you can get a Cayman that not only undercuts its big brother on price, but in many ways, delivers a better driving experience. Of course, we're talking about the Cayman GT4, a car that pilfers the old 911 Carrera S 3.8-liter, flat-six engine and the GT3's adaptive suspension system and carbon-ceramic brakes. Not only does it borrow from big brother, but it's arranged in what some might argue is a more logical manner, parking that naturally aspirated boxer smack-dab in the middle, rather than at the back like the 911. Oh, and the manual-only GT4 is only a tenth slower to 60 than the new, turbocharged Carrera S, but has a starting price that's $18,800 lower. Yes, you read that correctly, the GT4 is a Ford Focus less than the standard-bearing Porsche. Naturally, Xcar keeps all this in mind as it tests the GT4, a vehicle that it comes to a rather interesting conclusion about. Of course, we won't spoil that for you, so head on up and check out the entire test, as Xcar's Alex Goy tests out what may well be a genuine alternative to the 911. Related Video: