2011 Porsche 911 Carrera S Coupe 2-door 3.8l on 2040-cars

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'Latest production version' of Porsche 918 shown off on Twitter

Porsche posted a picture of what it is calling "the latest production version" of the 2015 Porsche 918 Spyder on Twitter. It looks like the gasoline-hybrid supercar is being driven sportively on some California back roads during Monterey Speed Week.
Whatever updates were made to this version aren't visual (except for the paint), as the one Chris Harris drove last spring and another seen hot-weather testing in Nevada both had production bodies. We presume the changes are relatively minor and more than skin deep - perhaps brake calibration, suspension tuning or tweaks to the powertrain - but Porsche didn't release any more information.
The 918 Spyder is Porsche's latest supercar, which will compete with the LaFerrari and the McLaren P1 hybrid supercars. The Porsche may be the underdog of the group when considering horsepower, acceleration, top speed and price, but the 887-horsepower brute has the most advanced hybrid drivetrain of the three.

eBay Find of the Day: Your choice of new, unregistered mid-2000s supercars

If you didn't quite find what you were hoping to see under the tree this year, maybe it's about time you buy yourself something nice. Something like an unregistered 2005 Porsche Carrera GT. The car has never been titled and has just 83 miles on the odometer. With one owner since new, the Carrera GT is likely to be as nice an example as you're likely to find outside of a museum. Porsche only built 340 of these machines back in 2005, and with a 610 horsepower V10 kicking at your spine, you can lap Santa's sleigh next year. Currently, the Carrera GT has a buy it now price of $457,325 with around six days left on the auction.
Not flashy enough for your tastes? Stroll on down to West Hollywood and you'll find a similarly untitled 2004 Ferrari Enzo up for grabs with a sticker of $1.8 million. Technically a Euro-spec car, the Enzo isn't legal to operate on US roads, but could be modified to satisfy Uncle Sam with a little effort. The seller calls this car the "last brand-new Enzo in existence" and with 175 miles on the clock, that may be a true statement. You can head over to eBay Motors for a closer look if you're feeling spendy.

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.