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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 will build a Tesla fighter, sources say, as GM's leading EV brand

WASHINGTON — Cadillac is expected to become General Motors' lead electric vehicle brand as the largest U.S. automaker gears up to introduce a new model under that luxury marquee to challenge Tesla, two people briefed on the matter said Thursday. GM is set to announce Friday as part of an investor update that a Cadillac will be the first vehicle based on its forthcoming "BEV3" platform, the people said. The vehicle platform is the basis for vehicle underpinnings, including the battery system and other structural and mechanical parts. GM is not expected to disclose on Friday additional details, including precisely when the Cadillac EV will be built, whether it will be a crossover or sedan, or where it will be assembled, the sources said. A GM spokesman declined to comment. GM had previously focused on making electric vehicles under its mass market Chevrolet brand, including its plug-in Chevrolet Volt and battery electric Bolt. GM announced last year it was ending production of the plug-in Volt as well as a low-selling plug-in Cadillac CT6, even as it moved to boost EV spending. GM said in November as part of its restructuring efforts it was doubling resources for electric and autonomous vehicle programs over the next two years. Last month, two Ohio senators asked GM to commit to building all future electric vehicles for U.S. buyers within the country. GM said in 2017 it planned by 2021 to introduce a new dedicated flexible electric vehicle architecture and an advanced battery system to support the development of at least 20 new models in the United States and China. GM said in 2017 that a new electric vehicle platform in 2021 will serve as a base for at least nine derivatives, ranging from a compact crossover to a large seven-passenger luxury sports utility vehicle and a large commercial van. Johan de Nysschen, who was then Cadillac's president, told Reuters at the Detroit Auto Show in January 2018 the luxury brand will play a "central role" in GM's electrification strategy, including China. He added that Cadillac would be "at the forefront" of rolling out new electric vehicles in the United States and China. He left GM in April. This week, GM said Cadillac sales in China rose 17.2 percent in 2018, surpassing 200,000 units for the first time. GM Chief Executive Mary Barra has said that GM aims to sell 1 million electric vehicles a year by 2026, many of them in China, which has set strict production quotas on such vehicles.

Cadillac Celestiq electric sedan could top $200,000

General Motors teased a slew of new electric vehicles last week at a media event where cameras weren’t allowed, and now thereÂ’s more news about the Celestiq, one of the two EVs in the pipeline for Cadillac. Reports suggest it wonÂ’t come cheap and will retail for at least $200,000. Wall Street Journal auto writer Mike Colias dished that detail, along with word of a mid-2020 launch, on Twitter, attributing it directly to Cadillac President Steve Carlisle. Cadillac has made no official mention of starting price for either the Celestiq luxury sedan or the Lyriq, an EV SUV that it has previously teased. A spokesman told Autoblog the brand wouldnÂ’t comment on future product speculation. Leftover scraps from Cadillac flagship ‘CelestiqÂ’ news: ItÂ’ll be hand-built in the hundreds per year, Caddy chief Steve Carlisle said. Price? Six figures Â… “and it wonÂ’t have a 1 in front of it.” Due mid-2022. — Mike Colias (@MikeColias) March 5, 2020 If true, the six-figure MSRP would make the Celestiq the most expensive Caddy ever assembled, at least outside of one-off coach builds and the presidential limo, vaunting it into the same class as brands like Bentley, Lamborghini and Rolls-Royce. By way of comparison, the limited-edition ultra-luxury 1957 Cadillac Eldorado Brougham four-door debuted with a $13,074 price tag, the most expensive car of its day and the equivalent of around $120,000 in todayÂ’s dollars. So what do we know about the Celestiq? For starters, itÂ’ll be a halo flagship hand-built in limited quantities somewhere in the Detroit area. Our reporters who saw the white four-seater describe it as having a long, fastback roofline, no side mirrors or visible door handles, with a long wheelbase, short overhangs and a tinted glass roof. A rendering of the interior showed an LED instrument cluster and infotainment display that stretches between both A pillars, with touchscreen interfaces on the rear of the front seats. It also reportedly features a hatch instead of a conventional trunk and styling cues from the Escala concept from 2016, shown above. Cadillac teased it as the “ultimate luxury experience” and said it would be highly customizable. Cadillac also showed off the Lyriq, the name itÂ’s given to its midsize electric crossover that it had previously promised to unveil in April, possibly at the New York Auto Show, if it manages to happen given the coronavirus.