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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.

Woman thwarts car thieves by jumping on hood

When a pack of car thieves tried to steal a Milwaukee-area woman's car at a gas station, she didn't run for help. Oh no. She hulked out, jumped on the hood, and screamed her head off until the thief finally ran off. According to WISN, Melissa Smith was gassing up her white Subaru Outback at a BP station near Milwaukee's historic Third Ward on the afternoon of May 24. As she stood there pumping gas and minding her own business, a black Cadillac swung slowly around the front of the Subie and came to a stop just off the front left corner. As Smith turned her back to hang up the pump nozzle, a dude bailed out of the Caddy, crouched down, and snuck into the Outback's driver's seat. "I didn't see him till I saw him get into my car. Or someone was in my car, and had my, 'Oh, hell this isn't happening to me today' moment," Smith told WISN. As soon as she saw the thief in her car, Smith ran around the front then leaped on to the hood. She started yelling and pounding on the windshield as the thief tried to pull away from the pump, but he refused to stop. He tried a couple quick stops in an attempt to shake her off, but to no avail. "He looked at me, and he laughed at me, which really irritated me," Smith said. "He was laughing while I was on my car, and he was trying to throw me off, so zero remorse." Smith clung to the Subaru, shouting and pounding until the thief gave up. He abandoned ship, jumped back into the Caddy, and the group of thieves sped away. Unfortunately, when the thief bailed he left the Subie in gear with Smith still holding on for dear life. "Then I had to chase my car into the street and stop it before it hit somebody else," Smith said. Thankfully, Smith was unharmed in the incident, but the crooks got her purse, phone, wallet, and sunglasses. Milwaukee police are still looking for the suspects, who they say stole the black Caddy before trying to steal Smith's Subaru. Related Video: News Source: NBC News, WISN Auto News Weird Car News Cadillac Subaru Crossover Sedan carjacking milwaukee

2022 Chevy Suburban, Tahoe, GMC Yukon, Cadillac Escalade up another $1,600

The 2022 Chevrolet Tahoe and Suburban, the 2022 GMC Yukon and the 2022 Cadillac Escalade have all gone up by $1,600. The GM profit and loss department added $1,500 to the MSRP for each of the full-sized SUVs and $100 to their destination charges, that destination fee now $1,795 for each vehicle. It's not an inconsequential bump; however, considering where the trucks were priced at launch, and everything that's happened since, the latest retail prices don't seem that bad. Take the Suburban — in February 2020, Chevrolet practically carried over pricing for the truck with a revamped interior and independent rear suspension, starting it at $50,295 after destination. After this latest increase, the 2022 Tahoe LS in two-wheel drive costs $55,590, after destination.  The delta between the 2021 Suburban at launch in March 2020 and the current model is a little grander compared to the Tahoe, like the SUV itself. Back then, it started at $52,295, the same price as the outgoing model. After this third price increase in the past year, the 2022 Suburban LS in 2WD starts at $61,290 after destination. GM Authority says the 2023 Tahoe and Suburban are reportedly headed down production lines in the middle of July. The biggest addition to both models will be the availability of Super Cruise, which is already available on the sister SUV, the Cadillac Escalade. The hands-free driving assistance feature can only be optioned on the Premier and High Country trims. It costs $2,500 to put Super Cruise on the Escalade. GM hasn't divulged the feature's price yet for the Chevy twins; that's likely to come when the automaker announces 2023 Tahoe and Suburban MSRPs, so beware of more potential price increases. After that, there's a heavy refresh planned for the 2024 model year, including a new instrument panel design that looks like it replaces the current gauge cluster with a large, freestanding screen.  The Yukon's entry-level price goes up to $57,590 for the SLE trim turning the rear axle.   The Cadillac Escalade's second MSRP bump takes it to $81,235 for the Luxury 600 trim in 2WD, and $84,235 for the extended ESV model in the same trim. The price creep hasn't stopped Escalades from pulling off dealer lots almost as soon as they're delivered, sales for the first quarter of the year totaling 10,505 units, trouncing domestic and foreign competition. Related video: