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First 2015 Chevy Corvette Z06 engine blows up at just 891 miles

You've waited and watched and waited some more for the arrival of your 650-horsepower, $78,000 Chevrolet Corvette Z06. Finally, that joyous day arrives and you eagerly, but gingerly, begin to break-in the 6.2-liter supercharged V8 monster under your hood. Then 900-odd miles after delivery, your excitement grinds, quite literally, to a halt. That's what the owner of one 2015 Z06 claimed happened to him when a simple break-in drive resulted in a lunched engine. The owner, known as Lawdogg149 on Corvette Forum, says he was out breaking-in his car ahead of a January track event when it happened. "While making a pull from 35 miles per hour, I accelerated and shifted short of redline, and boom - the car began knocking. I pulled over and popped the hood. I could hear a loud knock coming from the No. 6 cylinder area along with a serious, grinding, metal-on-metal sound coming from the supercharger area," Lawdogg wrote. A subsequent trip to the dealer confirmed his concerns, with the service facility telling Lawdogg that the No. 6 valvetrain had failed. The dealer couldn't research the issue further, though, as General Motors requested the engine be returned for a more thorough evaluation. The good news for the Z06's unlucky owner, at least, is that GM will be covering the engine replacement under warranty, an expense that Corvette Forum estimates is a nearly $24,000 procedure. At this point, the two leading theories behind the engine's detonation involve a manufacturing defect – which could be why GM is so keen to tear the blown powerplant down – or a mistake on the part of Lawdogg. As Motor Authority points out, such an error could be something as simple as the Z06's owner accidentally shifting to first rather than third during his 35-mph pull. If, however, there's a deeper manufacturing problem with the Z06's engine, this might not be the only case we end up hearing about.

Leaked GM document shows GMC Sierra I6 diesel is more powerful than F-150's

GM told us earlier this year that the 2019 GMC Sierra would be getting a 3.0-liter I6 diesel option, but it never mentioned power or fuel economy figures. Hold the phone though, because a leaked GM Canada document just showed up online that lists out the details we've been waiting for. Originally published by TFL Truck, the 3.0-liter oil-burner supposedly makes 282 horsepower and 450 pound-feet of torque. For those who are counting, that's more than the Ford F-150's 250 horsepower and 440 pound-feet from its 3.0-liter diesel. It soundly bests the 240 horsepower and 420 pound-feet of torque from Ram's 3.0-liter diesel as well. Fuel economy is another story, though. The promotional material states that it will get 28 mpg on the highway, which is 2 mpg short of the F-150's 30 mpg — mind you, it's only capable of that magical 30 mpg figure in rear-wheel drive form. There's another caveat here, too; these are numbers for Canada, so they're not exactly finalized EPA figures. However, we wouldn't expect drastic differences between the two when the American numbers come out. The leaked documents also state the diesel Sierra will be capable of towing 7,800 pounds. That number seems remarkably low when compared to the F-150, which can tow up to 11,400 pounds with its diesel. Extra power and torque would have us assume that GM could get even better numbers than Ford, so we're going to hold our final judgment for official word. A 10-speed automatic will do the shifting on the diesel, just like on the 6.2-liter V8. Since the Chevy Silverado is also expected to get this engine, we can assume the figures would be almost, if not identical, to those we see here. We recently drove the 2019 Sierra and Silverado without the diesel engines, so go check those reviews out if you'd like to know more of our thoughts on the redesigned GM trucks. Related video:

First-edition Detroit muscle raises millions for charity at Barrett-Jackson

Amidst all the classic metal crossing the auction block each year in Scottsdale, AZ, Detroit automakers have a tradition of donating the first examples of their most enticing new muscle cars, with the proceeds of their sales going towards worthwhile charities. This year, Barrett-Jackson handled three noteworthy examples. The highest price among them was the first Ford Shelby GT350R Mustang with the VIN #001, which raised $1 million for the Juvenile Diabetes Research Foundation. General Motors donated the first new Chevy Corvette Z06 Convertible, the first retail example of the droptop supercar garnering $800,000 for the United Way. Along with the Z06, GM also donated the first new 2016 Cadillac CTS-V sedan, which brought in $170,000 for Detroit's College for Creative Studies. Although these were the headline Motown muscle machines furnished by the automakers themselves, they weren't the only vehicles auctioned off for worthy causes. A 1950 GM Futurliner bus donated by collector Ron Pratte led the charge when it brought in $4.65 million for the Armed Forces Foundation. Other lots included a custom Jeep Wrangler donated by SEMA ($85k), a new M5 donated by BMW ($800k), a '79 Oldsmobile Cutlass Hurst ($140k), '39 Cadillac LaSalle C-Hawk ($410k), Jeff Gordon's 1999 NASCAR-spec Chevy Monte Carlo ($500k) and a Victory Cross Country 8-Ball motorcycle ($180k). All told, the charity lots raised over $8.7 million for local and national charities. BARRETT-JACKSON REACHES HISTORIC HIGHS FOR SALES, CROWDS AND CELEBRITY APPEARANCES IN SCOTTSDALE • Barrett-Jackson sold 1,611 vehicles, which went for more than $130 million (unaudited), smashing records in the company's 44-year history during the 10-day auction at WestWorld of Scottsdale • Automobilia sales nearly tripled world records, with 2,000 pieces selling for more than $6.55 million • Celebrity attendance and crowds, along with ratings on Discovery and Velocity, spike SCOTTSDALE, Ariz. – Jan. 18, 2015 – Barrett-Jackson, The World's Greatest Collector Car AuctionsTM, reached historic highs during the Scottsdale auction at WestWorld from Jan. 10-18, 2015. During the 10-day auction, Barrett-Jackson recorded more than $130 million in vehicle sales (unaudited) and a world record $6.55 million in automobilia sales (unaudited), making it the highest auction in sales to date. The Ron Pratte Collection alone brought in over $40.44 million in vehicle and automobilia sales.