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Hottest Cadillac CT4-V and CT5-V rumored to offer manual transmissions

We recently received one large detail to fill in the picture of the hottest versions of the Cadillac CT4-V and CT5-V, the sedans maybe or maybe not called Blackwing. As you know, due to a platform switch caused by cost cutting at parent GM, the 4.2-liter twin-turbo Blackwing V8 won't figure in the equation because it won't fit in the engine bay of either sedan. The new, gone-too-soon engine is too wide and too tall. The hottest V models will turn to stalwarts in the range, the CT4-V appearing to get the 3.6-liter twin-turbo V6 used in the departed ATS-V, the CT5-V working with the 6.2-liter supercharged V8 also put to use in the Chevrolet Camaro ZL1 and C7 Corvette Z06. But all of this could mean good news for three-pedal enthusiasts; both engines have been paired with manual transmissions previously, and Muscle Cars & Trucks says both of the coming flagship V models will get manual transmissions. We've expected a manual in the CT4-V. Not only did GM President Mark Reuss say, "Cadillac will make manuals in V-Series" during the launch of the milder V variants, but spy video of the CT4-V from last summer captured a camouflaged CT4-V looking and acting like a car with a manual gearbox. However, no one surmised that the CT5-V would get a manual, too. None of the bigger sedan's competition is sold with a stick shift, and the retired CTS-V with the same 6.2-liter supercharged V8 was only sold with an eight-speed automatic, while just one aisle over the Camaro ZL1 offered a six-speed manual and the Corvette Z06 a seven-speed manual. The last time Cadillac put a row-your-own in the midsize luxury scorcher was the second-gen CTS-V — the one that came in a wagon bodystyle, too — which paired a supercharged LS9 V8 derived from the C6 Corvette ZR1 and a six-speed Tremec manual. MCT doesn't cite any sources, so take this as rumor for now. It's possible to read Reuss' statement in line with this rumor, though. The assumption has been that the plural "manuals" referred to multiple stick shifts going into multiple CT4-V sedans, whereas he could have meant there will be two manual-equipped sedans in the V-Series range. We'll hope for the best and see what pops out of the transmission tunnels on both sedans when they debut later this year. Related Video:

GM recalls 55,000 trucks, SUVs for separating axles, fuel pump failures

General Motors issued four separate recalls covering eight of its truck and SUV models for issues related to fuel pump and half-shaft failure. In total, the four campaigns include more than 55,000 vehicles spread out over three brands and six model years, but they've sorted themselves neatly into two categories. Let's dive in.  Axle separation Four models are being recalled for potential axle separation: The 2023 Cadillac XT5, 2023 GMC Acadia, 2023 Chevy Blazer and 2023 Chevy Traverse. The number of units affected is incredibly small (10 units each times two recalls, for a total potential population of just 20 cars). In each case, a small number left the factory with half-shaft assemblies that may have been missing the retention rings that keep them in place, possibly allowing the axles to separate or eject from the transmission. In the case of the XT5 and Acadia, it's the right-side axle assembly; Chevy dealers, however, will have to check the left side.  Fuel pump failure Again, we have multiple vehicles being recalled for similar issues, but in this case they're a bit more distinct. The first of these recalls covers the 2021-2022 Chevy Equinox and 2022 GMC Terrain. GM says a supplier-initiated change may have led to fuel pumps shipping with inadequate clearances to allow for the prescribed flow of fuel, meaning the pump could starve the engine. Customers experiencing the issue may see a check engine light and experience engine hesitation. In some cases, the cars may not start at all. Chevy and GMC will replace the units in question with correctly specified pumps.  The second recall covers a fairly specific cross-section of GM's HD truck lines. 2017-2019 Silverado and Sierra HD trucks sold with the diesel engine and a dual-tank configuration may have shipped with a rear fuel pump that is susceptible to fouling by debris, preventing fuel from properly transferring to the front tank, or, in extreme cases, resulting in a collapse of the rear tank. This issue can lead to inaccurate/erratic fuel tank readings, engine hesitation, a check-engine light or failure to start.  In both cases, GM will inspect and replace faulty units free of charge for customers. Expect notifications to be delivered by March.  Related video: Recalls Cadillac Chevrolet GMC Ownership Safety Truck SUV

MIT puts V2V technology on its 2015 Top Ten list

Of all the technologies swimming around the automotive world, it is vehicle-to-vehicle communication that the Massachusetts Institute of Technology has fished out as one of its Ten Breakthrough Technologies of 2015. It joined emerging tech like brain organoids, supercharged photosynthesis, and Project Loon on the list, and got the nod over autonomous driving because, as the MIT Technology Review wrote, V2V communication "is likely to have a far bigger and more immediate effect on road safety." How so? Because actual cars transmitting data like their location, speed, steering angle, and state of braking to one another at least ten times per second provides a greater degree of awareness than sensor readings and algorithms. The US Department of Transportation and the National Highway Traffic Safety Administration have been working for years on standards and a regulatory schedule for introducing V2V to the marketplace, and Cadillac plans to incorporate V2V into at least one of its vehicles by 2017. Since we've begun the year with a number of stories of cars being hacked into, that got us wondering about the security of V2V communications. In a recent piece by our own Pete Bigelow on what motorists should know about getting their cars hacked into, he wrote that although cyber break-ins are extremely difficult, expensive, and time-consuming to do remotely, V2V is "one more conceivable avenue a hacker could use to impact multiple cars at a given time." So we spoke to Wilmington, Massachusetts-based Security Innovation about it. The automotive consultancy company has been working with the DOT since 2003 on V2V technology and the issues around it - namely security and privacy - and its chief scientist, William Whyte, is the technical editor of the Institute of Electrical and Electronics Engineers (IEEE) 1609.2 standard outlining its security protocols. Those protocols are expected to be finalized by the DOT toward the end of this year and then come into effect in 2016, and the company's Aerolink product is the security solution Cadillac will use. Whyte said, "If you hack into a car, V2V is the hardest place to start," and Pete Samson, the general manager of Security Innovation's automotive team, said "There are ten or 12 alternate attack surfaces" around the car that would make much easier targets.