1991 Cadillac Allante Base Convertible 2-door 4.5l on 2040-cars

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How GM's grueling 24-hour test gets the kinks out of its performance cars

One of the biggest challenges automakers face when designing a high-performance car is making sure that it is both fast and reliable. For General Motors, any car that might be taken to the track by its owner - like the Corvette, Camaro Z/28 (shown above) and the Cadillac CTS-V, for example - undergoes a rigorous and strenuous 24-hour test by engineers at the Milford Proving Grounds, as pointed out by Car and Driver.
We've posted on this topic in the past - on a video showing the Camaro ZL1 being brutalized, for instance - but this article gives a more in-depth look at what actually happens behind the scenes... including what that poor ZL1 went through. Though the test isn't for 24 hours straight, the cars are pushed as hard as possible by some of GM's best drivers with only the brakes and tires replaced frequently.
We don't want to ruin the fun for you, but it is an interesting article that tells just some of what GM does to develop its sports cars. Check out the full article over at Car and Driver for the rest of the story.

Liberace's gilded Cadillac could be yours

With their chrome grilles and oversized wheels, it's hard not to notice a Cadillac these days. But this one is even more blingtastic on account of the 23.75-karat gold-leaf bodywork.
The 1931 Cadillac Golfer's Drop Head Coupé is said to have belonged to the inimitable performer Liberace, who didn't just have it covered in gold - he also had the exterior door handles plated in silver and the inside handles in 24-karat gold as well. It's also got a white leather interior and headlights that - well ahead of their time (if you'll pardon us, Mr. Tucker) - pivot with the steering wheel. All that bling is powered by a 5.7-liter V8 mated to a three-speed automatic transmission that pales in comparison to the seven, eight and even nine-speed gearboxes appearing on luxury sedans today.
The project was undertaken over the course of three years in the 1970s by one Jack Smith from Kansas. Smith (if that was his real name) sold it at auction in 1975, and it was most recently displayed for 12 years at a museum in Germany which claimed it was Liberace's own. The car is now going up for sale by Barons' at the Sandown Park horse racing track in Surrey, England, on September 17, when bidding starts at 85,000 pounds - equivalent to over $130,000 at today's rates.

Why the 2015 Detroit Auto Show will be the best since The Crisis

The Detroit Auto Show clearly has its swagger back, and the 2015 edition will be a veritable feast for the enthusiast senses. We're talking serious performance, and it will be exhibited in a variety of forms. Sports cars. Supercars. Muscle-bound luxury cars. They're all set for splashy debuts in January in the Motor City. It's another signpost that companies have recovered from the global economic crisis that gripped the industry from 2008-09. For a while, automakers played it safe at Detroit and other shows. Environmentally friendly cars were important, especially for General Motors and Chrysler that were living on loans from Uncle Sam. Ford, Toyota and other companies generally focused on their best-selling or core models. With a few notable exceptions, recent auto shows have been a bit more buttoned-down than in the past. Boring probably isn't the right word, but austerity has been reality. That's changing. Car companies are making money. Sales are up. Aside from the many nagging recalls – and they are notable – the industry now has the time and energy to make performance cars a priority. That will be offered in hard evidence in Detroit. A year from now when we look back at this auto show, we'll sum it up with one word: Horsepower. But make no mistake, this isn't frivolous. Sports and luxury cars are expensive. They're profitable. They boost images and highlight strengths. With that in mind, here are five significant performance-oriented reveals to watch for when the show kicks off in less than two weeks. 2016 Acura NSX Acura's reborn NSX is a strong bet to earn plenty of votes for our Editors' Choice awards. It's one of the most anticipated – and strung-out – reveals of the year. Think back: we actually saw an NSX concept at the 2012 Detroit show, and Acura has spent the last three years teasing the car in a variety of ways. The slow burn, however, means we know a lot about the NSX. It's will use a mid-mounted twin-turbo hybrid powertrain and run with all-wheel drive. It will also wear an innovative zirconium e-coat paint, a new paint process that Honda says is more environmentally friendly. Honda has also said it will build the new NSX in Ohio, where a large part of the car's development work has been done. The original NSX was produced from 1990-2005 and helped establish Acura's performance credentials in the United States. It was a landmark car and a shot across the bow of Ferrari, Lamborghini and others.