1970 Cadillac Convertible 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.

Cadillac Ciel concept features in Entourage trailer

Some of us may miss HBO's Entourage more than others, but one way or another, it sure had some cool cars. The characters on the show were constantly trading between Astons, Maseratis and Ferraris – not to mention a smattering of Benzes and Escalades – but one of our favorite sets of wheels from the show's entire eight-year run was the 1965 Lincoln Continental featured in the opening credits. The vintage parade car undoubtedly provided the studio with a great way to showcase the camaraderie between the four members of the title crew, but also made us pine for a time when you could actually get your hands on a four-door convertible. Unfortunately they just don't make 'em like that anymore – not the car and not the TV show in which it featured – but fans of both will be pleased to watch this latest trailer for the upcoming Entourage movie. Not only does it include all the members of the original cast, but it also features Detroit's latest (and arguably most stylish) attempt at reviving the four-door cabriolet: the commandingly elegant and achingly desirable but sadly unobtainable Cadillac Ciel concept of 2011. Related Gallery Cadillac Ciel Concept View 9 Photos News Source: Warner Bros. via YouTube Celebrities TV/Movies Cadillac Convertible Luxury Videos movie trailer cadillac ciel cadillac ciel concept

2015 Cadillac ATS-V gunning for the BMW M3

Spy photographers have spotted something interesting. Cadillac engineers have taken to public streets with the upcoming ATS-V and a playmate: the current BMW M3 Sedan. The prototype seen here wears a more aggressive front fascia, flared fenders and beefy brakes. Quad exhaust tips and what looks to be a small lip spoiler on the trunk deck sum up the most obvious visual changes over the standard ATS outside. Word has it the ATS-V will bow with the same twin-turbo 3.6-liter V6 available in the nose of the XTS. In that application, the engine is good for a stout 410 horsepower, which should be more than enough to hustle the sedan around a track.
Other details are still murky, however. First and foremost: will GM offer the ATS-V with an honest manual transmission, like it does with its big brother, the CTS-V? Something tells us we won't have long to wait to find out - the machine will likely bow next year as a 2015 model. Until then, dig in on our newest bevy of spy photos.