1989 Cadillac Allante Convertible Hard Top 89 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.

GM's Reuss explains why Cadillac is heading to New York

"We're going to take it to a place [New York] to change the way that we do business around the brand of Cadillac." - Mark Reuss
General Motors product chief Mark Reuss elaborated Tuesday on Cadillac's move to New York in 2015, saying it will "elevate" the brand and allow it to reach new customers.

South Dakota dealer filled to brim with classic cars

Other than the Sturgis Motorcycle Rally and Mount Rushmore, South Dakota isn't generally a hot topic, but that just means that cool stuff can hide in the open waiting to be discovered. Case in point: the classic car dealer Frankman Motor Company that operates three locations in Sioux Falls, SD.
Unearthed by the folks at Bring a Trailer, Frankman is a treasure trove of vintage, American iron. Their collection is full of the type of vehicles your irresponsible but cool uncle would show up with when you were a kid. Even better, these cars are priced at a level a working man can afford.
If you are lusting about a cruiser then Frankman has a 1956 Cadillac Deville Hard Top Sedan (pictured right) with 82,896 miles for $12,975. It's painted a color called Cascade Grey, but looks more like a pastel purple in pictures. While it needs some repairs to the accessories, the Caddy runs and drives, which is all you really need.