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Our favorite mid-engine Corvette theories and rumors

The mid-engine Corvette! We just saw blurry photos through the foliage, and are hearts are all aflutter because it means that this car is real. And it's the most " never before" Corvette since 1984. Which leads us to all kinds of wacky theories and speculation. Everybody knows something or heard from a guy. None of those guys (or gals) from GM are talking to Autoblog, to be clear. But that won't stop us from stirring the pot. Let's go over a few point-by-point. The pushrod engine will be replaced by an overhead-cam V8 Car and Driver has repeatedly reported that an overhead-cam engine will come after the mid-engine Corvette's debut with an old-school pushrod. We've heard the same thing firsthand, albeit from a source with no connection to the development of the Corvette or powertrain. "At some point two valves can't pass future emissions regulations," said the guy we know. While the pushrod engine is compact, the design makes it difficult - if not impossible - for sophisticated variable valve timing (and lift) systems that control combustion with more precision. Hasty conclusion: The pushrod engine has a finite life in front of it. This one's a lock, it's a just a matter of when. Bowling Green's new paint shop is really the mid-engine assembly line Credit to Reddit for this one. Like we said, everybody knows a guy. But let's look deeper. The new paint facility costs $439 million dollars and adds 450,000 square feet, almost half the size of the existing plant. Plus GM announced another $290 million in upgrades at Bowling Green Assembly. That sure sounds like a lot of money, but you can actually spend that much on a paint booth. Porsche spent 500 million Euros (about $561 million dollars) to add the Macan assembly to its Leipzig, Germany plant in 2014. Chrysler shelled out $850 million for a paint shop in Sterling Heights, Michigan. GM spent $600 million for a new paint shop at the Fairfax (Kansas City) plant. Honda, on the other hand, is working on a thrifty $210 million project in Marysville, Ohio that includes a 300,000 square foot expansion, and the low-volume Acura NSX facility only cost $70 million. Hasty conclusion: The square footage and cost could easily mean a new assembly line instead of (or in addition to) a paint line. And if the NSX plant was really that cheap, GM could have hidden a similar sum in its existing announcements.

Cadillac's striking Escala concept is reportedly headed for production

Cadillac is reportedly planning a new flagship four-door, and it won't be based on its alphanumeric naming system a la the CT6. It'll be the Escala, the stunning concept fastback it revealed in 2016 in Pebble Beach. The news comes via Autoline, which cites AutoForecast Solutions. The Escala is said to be planned for production starting in December 2021 at GM's Detroit-Hamtramck plant, which currently builds the CT6, Buick LaCrosse and Chevrolet Volt and Impala. That suggests the Escala, which was branded as a four-door coupe, will likely keep that layout. It'll also be built on the CT6 platform. Cadillac has been talking about fitting a flagship sedan above the CT6 for years, and the Escala's design language has been influencing bits of other Cadillac models, from the refresh of the CT6 to the broad grille shape on the new XT4 crossover, which debuts at the New York Auto Show next week. The concept Escala featured a wide, muscular stance and a minimalist, white mid-century modern interior aesthetic, with tail lamps that evoke waterfowl in flight. Interestingly, it came equipped with a 4.2-liter twin-turbo V8 with cylinder deactivation, which Cadillac President Johan De Nysschen said at the time was "absolutely worthy of a car of this caliber." But with such a long horizon before production, there's obviously lots of time to develop a more pragmatic production model and cue ravenous speculation. Or, for that matter, to decide to rename it something like the CT8. Related Video: Featured Gallery Cadillac Escala Concept View 33 Photos Image Credit: Jeff Jablansky Design/Style Cadillac Coupe Concept Cars Luxury Sedan cadillac ct6 cadillac xt4 cadillac escala

Cadillac boss: We will have diesels

Johan de Nysschen doesn't usually mince words about his plans, and the Cadillac boss says that diesel-fueled models are on the horizon for the luxury brand in the US by the early 2020s. The four- and six-cylinder engines under development would launch first in Europe about 2019. "We will definitely bring them to the US," de Nysschen said during a press event, according to Automotive News. Unfortunately, the Cadillac president isn't saying which models would get the diesels, yet. This plan has been in the works for at least several months, and Cadillac made mention of the two oil-burners earlier this year during the unveiling of its new V6 engine. De Nysschen broached the possibility during an interview at the 2015 Detroit Auto Show, and he also referred to the inclusion of hybrids and plug-ins into the company's lineup at that time. Last year, a rumor suggested the addition of a V6 turbodiesel into the Escalade range. There were also rumblings of an oil-burning ATS during that model's launch. While Cadillac is no stranger to offering diesels in Europe, the decision to develop these new ones could come at an inopportune time. Governments there are rapidly moving against the fuel in favor of electrification. Tighter emissions regulations could also be on the way for the EU. Related Video: