2007 Cadillac Sts-v Sedan Supercharged on 2040-cars

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Canada opens probe into 250,000 GM pickups, SUVs over brake performance

Transport Canada, the auto safety regulator, has opened a probe into braking issues in nearly 250,000 General Motors full-size pickups and SUVs after U.S. officials launched a similar probe last year, the agency said on its website. The U.S. National Highway Traffic Safety Administration (NHTSA) in November into 2.73 million U.S. 2014-2016 model year SUVs and pickups after receiving 487 reports of hard brake pedal effort accompanied by extended stopping distance that were attributed to deterioration of the engine-driven brake assist vacuum pump. Transport Canada's probe covers 249,700 2015 through 2017 model year vehicles including the Cadillac Escalade, Chevrolet Suburban, Chevrolet Tahoe and GMC Yukon as well as 2014-2017 Chevrolet Silverado LD and GMC Sierra LD vehicles. The U.S. agency said it had reports of nine incidents of vehicles incurring damage as a result of colliding with another vehicle or fixed object at low speeds and reports of two injuries. NHTSA said if the pump fails to operate, the amount of brake power assist can be significantly reduced, extending vehicle stopping distance. The NHTSA sent GM an information request in a Feb. 7 letter. A GM spokesman said he had no update on the investigation. Reporting by David Shepardson; editing by Jonathan Oatis

Cadillac CT6 gets a plug in Shanghai, will come to US

Don't call it the third coming of the Chevy Volt. The unsurprising debut of the Cadillac CT6 PHEV in Shanghai today has a powertrain that sounds an awful lot like the one that can be found in the Volt and the Cadillac ELR. The plug-in CT6 – identical to the CT6 that debuted in New York earlier this month – has an 18.4-kWh lithium-ion battery (just like the 2016 Volt) and offers an all-electric range of around 37 miles. It also copies the "Regen on Demand" feature from the new Volt and the battery cells "use the latest generation cell chemistry found in other GM plug-in vehicles." But Cadillac President Johan de Nysschen doesn't see the two powertrains as similar in at least one important way. General Motors calls the Volt and the ELR "extended range electric vehicles" (EREV) but in a statement, de Nysschen says that the plug-in hybrid CT6 is, "an ideal platform for Cadillac to offer its first plug-in hybrid." That GM is using the PHEV terminology rather than EREV is going to be important to some, even if the practical difference is only semantic. And yes, we all understand the irony of de Nysschen – the same guy who has a history of speaking ill of plug-in cars – hyping them now. Back when he worked for Audi, he said the original Volt was too expensive for what it offered and was thus, a car for "idiots." Speaking in Shanghai today, de Nysschen said the new CT6 PHEV was, "an EV without any of the disadvantages or range constraints," according to Automotive News. If the batteries are similar to GM's other EREV/PHEV cars, the CT6 powertrain is at least different. The ELR uses a 1.4-liter engine, while the new Volt has a 1.5-liter four-cylinder mill. The CT6, on the other hand, has a 2.0-liter turbo four-cylinder engine with direct injection. There is also an "all-new rear wheel electric variable transmission (EVT) with exclusively designed motors," that will give the CT6 PHEV, "smooth, spirited acceleration." The EVT is a two-motor-unit that uses three planetary gears. Maximum overall system output is 335 horsepower and 432 pound-feet of torque. Perhaps most interesting for American audiences is the fact that GM's press release, available below, makes multiple references to US-market sales of the PHEV. Official details on the EV range and fuel economy will be made available closer to the car's US launch.

2022 Cadillac CT5-V Blackwing, CT4-V Blackwing bring big performance back to the brand

They're finally here, the real successors to the Cadillac CTS-V and ATS-V: the 2022 Cadillac CT5-V Blackwing and CT4-V Blackwing. And at least on paper, they sure seem like worthy successors to those superb super sedans. They're more powerful, come with standard manual transmissions, and feature the latest and greatest chassis upgrades available. We'll start things off with the most beastly of the Caddies, the CT5-V Blackwing. Like the CTS-V predecessor, the Blackwing gets a supercharged 6.2-liter pushrod V8. But thanks to intake and exhaust improvements, output is up to 668 horsepower and 659 pound-feet of torque, as opposed to the CTS-V's 640 horses and 630 pound-feet. The engine also is handbuilt in Bowling Green, Ky., just like the short-lived turbocharged DOHC Blackwing V8. It's coupled either to a six-speed manual transmission with a twin-disc clutch, rev matching and no-lift shifting, or a 10-speed 10L90 automatic transmission. Power goes to the electronically controlled limited-slip differential at the rear, and rear-wheel drive is the only drive configuration available. The transmission and differential each get their own oil coolers, too. Cadillac says the CT5-V Blackwing should be able to hit 60 mph in 3.7 seconds with the automatic transmission, and the top speed is over 200 mph. 2022 Cadillac CT5-V Blackwing View 13 Photos As for the CT4-V Blackwing, it gets a twin-turbocharged 3.6-liter V6 built in Canada, and although it is more powerful than the previous car, it's only by a small amount. The CT4-V Blackwing makes 472 horsepower versus the ATS-V's 464, and the 445 pound-feet of torque is the same between each car. Just like the CT5-V Blackwing, the CT4-V gets either the same six-speed manual transmission or a 10-speed 10L80 automatic transmission, the electronically-controlled limited-slip differential, and the oil coolers. Picking the manual transmission has extra perks on the CT4-V Blackwing, though. The engines in manual cars received titanium connecting rods and revised crankshaft counterweights. The manual transmission's no-lift shift functionality is also more helpful on the CT4-V Blackwing since it keeps the car in boost between gears. Still, Cadillac's 0-60 mph time estimate is for the automatic model at 3.8 seconds. Top speed is 189 mph. 2022 Cadillac CT4-V Blackwing View 16 Photos Keeping all that power under control are a variety of chassis upgrades.