1992 Cadillac Seville Sts Sedan 4-door 4.9l 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.

Lutz dishes dirt on GM in latest Autoline Detroit

Bob Lutz sits down for Autoline Detroit - Click above to watch video after the jump
Autoline Detroit recently played host to Bob Lutz, and, as is always the case, the former General Motors vice chairman dished out some great commentary. Lutz was promoting his new book Car Guys vs. Bean Counters: The Battle for the Soul of American Business, and talk quickly turned to his role as it related to product development and high-level decision making at GM. While on the topic of brand management, Lutz revealed a few rather interesting tidbits about his former employer:
All Chevrolet vehicles were required to have five-spoke aluminum wheels and a chrome band up front, as part of the Bowtie brand's overall image.

Cadillac to recall 20,000 SRX models over wheels that could fall off

A potential issue with the lug nuts on 19,871 units of the 2013 Cadillac SRX in the US and Canada has lead to a recall of the luxury crossover. Those lug nuts that have a Teflon topcoat, identified by their bluish tint, could loosen and cause "creaking, rattling or grinding noises or steering vibrations." In the worst case scenario, a wheel could fall off, but there have been no reports of that happening, nor any reports of accidents or injuries due to the issue.
This is the second recall action on the SRX over the last few months. In March, Cadillac recalled 27,000 SRX models over a transmission programming issue. General Motors will begin notifying customers with the potentially faulty parts on June 3, at which time they can take their vehicles to dealers to have the tires rotated and new nuts installed. A further 7,397 SRXs exported from North America also face the recall action.