Very Clean Leather Sunroof Alloys 117k Looks And Runs Great Super Deal 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.

2024 Porsche Panamera; Rivian's surprise; Cadillac electrifies V | Autoblog Podcast #823

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Byron Hurd. They start off discussing a couple of vehicles they've both driven — the 2024 Ford Maverick Tremor and the 2024 Volvo C40 Recharge 2WD. From there, they pivot to Byron's first drive of the 2024 Porsche Panamera, and then from there it's on to more electrified luxury in the form of the new Cadillac Lyriq. After that, it's on to news. Rivian made a big splash last week. Not to be upstaged, Cadillac decided to get in on the action by teasing an electric V model, the Opulent Velocity Concept. After that, it's time for a future classic; this week, it's the Dodge Magnum. They end the episode by spending listener Isaiah's money on some used stick-shift transportation.  Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #823 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown News Rivian R2 revealed Rivian R3, R3X surprise reveal Cadillac Opulent Velocity concept What we've been driving 2024 Ford Maverick Tremor 2024 Cadillac Lyriq 2024 Porsche Panamera 2024 Volvo C40 2WD Extended Range Future Classic Dodge Magnum Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related video:

2021 Cadillac Escalade Onyx package adds monochrome logos

The 2016 Cadillac Escala concept showed off a number of features never seen on a Cadillac, one of them being a redesigned, entirely silver, untextured logo. Cadillac had been putting all-silver versions of its crest on the fenders of some of its vehicles, but those bore patterned silver inserts where the yellow, black, red, and blue would have appeared on the standard mark. The Escala logo, on top of being squatter and wider, displayed silver blanks where the colors went. Cadillac Society has found out a similar treatment is on the way for the 2021 Escalade as part of a new Onyx package. This time, instead of being brightwork, a Cadillac spokesperson told CS the logos are "more grey versus [the] silver/chrome [on the fenders]." And for the first time on a Cadillac on the showroom floor, these monochrome badges will appear on the grille and tailgate. Buyers can add a Sport Edition package to the current Escalade, dressing almost all the brightwork grille in gloss black and bolting on a set of 22-inch Midnight Silver wheels. The Cadillac logos, however, stay in color, and the Escalade lettering stays in chrome. That changes with the Onyx package, those gray monochrome crests joined by Escalade lettering in gloss black, plus 22-inch, 12-spoke wheels in high gloss black, and a similar blackout of all the other brightwork as found on the Sport Edition package. The Sport Edition is only available on three of the eight possible colors; a limited color selection could hold true for the Onyx package as well. Branding could get even more interesting when the crest's animated illumination shows up on the Lyriq electric crossover.  The 2021 Escalade will move to the new forked trim strategy, Premium Luxury on one side, Sport on the other, the Onyx package only available on the Sport side. For shoppers who want to go the other way, we're sure the new Escalade will offer something equivalent to the current Radiant Package that makes any Escalade even more impossible to miss on a sunny day. Related Video: