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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 CT5 vs. BMW 3 Series | How they compare on paper

Cadillac just introduced the CT5 sedan at the 2019 New York Auto Show, and it's set to replace both the larger CTS and smaller ATS in the brand's lineup. We have all the details and features for you, in addition to a deep dive with the car's chief engineer, but now it's time to see how it stacks up to the long-time standard bearer in this class: the BMW 3 Series. Now, the car is a bit larger than the completely new 2019 3 Series, but Cadillac says the 3 and the rest of the compact luxury sedan class is its target for this car. We'll dive further into this little conundrum later. This comparison will look at how these vehicles measure up on paper, as we haven't driven the CT5 yet. That will come later, but we're expecting it to be a proper sport sedan competitor with the 3 Series, since Cadillac is building it off GM's dynamically superb Alpha platform. Now let's get on with the comparison. Powertrains and performance Both of these sedans come standard with 2.0-liter turbocharged four-cylinder engines. The BMW four-pot is a bit more potent, coming in with 18 more horsepower and 37 pound-feet of torque more than the Cadillac. Here's our driving review of the BMW. The only upgrade engine for both available initially are turbocharged six-cylinders. BMW offers up its revised inline-six, while Cadillac offers a V6. These six-cylinders are both 3.0 liters. Cadillac bests the BMW in brute torque by 31 pound-feet, but BMW takes the horsepower prize, making 47 more ponies. It's hard to say which car will actually be faster to 60 mph — they'll probably end up being about the same once official numbers are out. This segment used to be one guaranteed to offer a manual transmission, but that's not the case anymore. Neither Cadillac nor BMW will offer a manual to start, but expect to see the stick shift return to higher performance models of each car. For now, they both get torque-converter-style automatic transmissions. One dimension that isn't going away from either anytime soon is rear-wheel drive. Both cars offer rear-wheel and all-wheel drive in every spec available. Fuel economy for the 3 Series is impressive at 30 mpg combined with the four-cylinder. We'll have to wait and see if Cadillac can challenge that figure with its less powerful engine. Size and practicality Here's where a lot of the confusion about the Cadillac CT5 sets in. The CT5 is a tad larger than the 3 Series in its exterior dimensions, but the interior specs are nearly identical.

Cadillac electric crossover will be revealed in April

Cadillac will unveil a midsize electric crossover in April, brand President Steve Carlisle told dealers at the National Auto Dealer Association (NADA) Convention Monday. The new crossover will be Cadillac's first all-electric vehicle.  The New York Auto Show is April 10-19, with press days April 8-9. It's unclear whether the Cadillac reveal would happen there, or as a standalone event before or after. Per Automotive News, Carlisle told the assembled representatives that Cadillac has big plans for transitioning from an all internal-combustion lineup to one anchored in electric cars.  "We enter this decade as an internal combustion engine brand. We want to position ourselves to exit as a battery-electric brand, so we have to manage both at the same time," he said.  Early last year, Cadillac teased the new midsized crossover, telling us to expect it to come in two- and four-wheel-drive flavors and to be offered as a global model. The last we heard of GM's plans to electrify its luxury brand came in December, when Carlisle laid out an aggressive plan to switch over its entire lineup by 2030.  Just a week later, parent company GM canceled its plans to appear at CES earlier this year because the model it planned to showcase was not ready to be unveiled due to delays introduced by the UAW strike last fall.  Not even two weeks after the tech show concluded, GM introduced of the self-driving Cruise Origin at a private event in San Francisco, prompting speculation that it was the original subject of GM's CES plans. Whether the Cruise Origin or Cadillac's new mystery midsizer was to bow at CES, there's only one left to reveal now.  Cadillac has been keeping news of its future EV offerings largely on the back burner. The brand has been busy effectively re-launching its entire lineup — an effort that will culminate with the rollout of the new Escalade SUV later this year.  In Carlisle's NADA remarks, he indicated that Cadillac dealers will learn more about the company's plans at a meeting in September.    Green Cadillac GM Crossover Concept Cars Electric Future Vehicles Luxury