1957 Cadillac Eldorado Biarritz on 2040-cars

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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 previews CT6 interior and its 34 Bose speakers

We get an early monochrome look at the upcoming Cadillac CT6 interior thanks to its stereo system. Bose will debut its Panaray Sound System in the flagship sedan and have 34 speakers located throughout the cabin that will have the occupants bathing in sound. A close look at the interior mock-up shows little visible difference between the CT6 and the praised CTS; the only thing we could find was that the headrests are slightly different and the seat switches have been moved to the doors, a la Mercedes-Benz. As for that Panaray, Bose says it incorporates elements from the company's home and professional audio products, and was designed "exclusively" for this car. We don't know if that means it was tuned for the CT6 or that it will only ever be available on the CT6. Nor do we have any detailed specs on it at the moment, but there's a press release below with a few more tidbits and a high-res graphic above with details on each speaker. Bose Introduces First-of-its-Kind Panaray® Sound System for First-Ever Cadillac CT6 Advanced automotive sound system integrates elements from home products DETROIT, 2015-03-26 – Thirty-five years ago, Bose and Cadillac defined premium automotive audio, forever changing how people listen to music in a vehicle. Now Bose is introducing its most advanced and highest-performing automotive sound system – the Bose® Panaray® system, designed exclusively for the Cadillac CT6 sedan. The 2016 CT6 is a first in its segment, combining the prestige and technology of a range-topping vehicle with the dynamics and efficiency of a smaller one. The Panaray system marks the global debut of Bose Automotive's new line of "Advanced Technology Series" sound systems, integrating technologies and design elements from Bose home entertainment and professional audio products to deliver unprecedented performance in a car. "We asked Bose to create something truly special for this new vehicle: an unbounded sound system, providing an audio experience unmatched in any other luxury automobile," said Travis Hester, Cadillac CT6 executive chief engineer. "Cadillac CT6 customers will be elated by what they hear and feel when they switch on the Bose Panaray system." The Bose® Panaray® system reproduces music with more clarity, precision and deep bass than any system preceding it.

Cadillac CT6 PHEV battery shape a big departure for GM's plug-in hybrid tech

Anyone with any familiarity with the electric powertrain details for the two General Motors plug-in hybrids will have noticed that the information we have about the newly announced Cadillac CT6 plug-in hybrid has a lot of numbers in common with the Chevy Volt and the Cadillac ELR, like the 18.4-kWh lithium-ion battery pack and an expected all-electric range of 37 miles. We also noticed that the announcement calls the plug-in CT6 hybrid an actual plug-in hybrid and not an "extended range electric vehicle (EREV)," which is what GM calls the Volt and the ELR. This, of course, means we needed to ask GM some questions. Donny Nordlicht from Cadillac communications told AutoblogGreen that while the Volt and CT6 batteries are both 18.4-kWh, the shape is completely different. In the Volt/ELR, the battery is T-shaped (see it here). The CT6 has four seats, with a tunnel running between the two in the rear, as you can see here, but the battery in the CT6 PHEV is "a cube-shaped pack, which is between rear seats and the trunk," Nordlicht said. "There is no pass through." GM has not yet released any technical schematics about this pack, but Nordlicht said that, "The CT6's advanced mixed-material platform was designed to accommodate the PHEV system by design so that it minimally intrudes on the cabin space." It also means that the CT6 can be ordered as an optional PHEV, while the Volt and ELR were purpose-built plug-ins. GM is also distinguishing between the EREV and PHEV powertrains in its vehicles from this point forward. "We are not discarding the EREV language," Nordlicht said. "The CT6 utilizes a two-motor system mated to a 2.0T 4-cylinder engine, which is an all-new system to Cadillac." We assume that the PHEV packs will use li-ion cells from LG Chem, just like the EREVs do, but Nordlicht did not answer our question on that point. As for other details about the CT6 PHEV – like production, full dimension, and pricing – we will just have to wait until closer to when the vehicle launches for those. Related Video: