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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.

GM Recalling Another 2.7 Million Vehicles In Five Separate Campaigns

The recalls keep rolling in from General Motors, evidently keen to avoid repeating the mistakes of the ignition-switch debacle and clean house. This time they're all coming at once, with five separate recalls announced together covering approximately 2.7 million vehicles. The largest of the five actions involves over 2.4 million units of the previous-generation Chevrolet Malibu and Malibu Maxx, Pontiac G6 and Saturn Aura in order to fix brake light wiring harness, which have been found to be susceptible to corrosion. The recall is separate from the 56k Aura sedans which GM recently recalled over faulty shift cables, not to mention the previous massive recall of 1.3 million vehicles – some of them the same models – but appears to have resulted from the National Highway Traffic Safety Administration investigation that started with the G6 almost a year ago. The second-largest campaign involves the 2014 Chevy Malibu, specifically those fitted with GM's 2.5-liter engine and stop/start system, approximately 140,000 examples of which has been found to have problematic brakes. The issue does not appear to be connected to the recall of 8k Malibu and Buick LaCrosse sedans (also involving brake woes) which we reported upon last week. Four crashes have been reported in such models, but GM admits it's not yet clear if the problem was a contributing factor in the accidents. A further 112k Corvette models from the 2005-2007 model years are being called in for problems with their low-beam headlamps resulting from a flexing relay control circuit wire that's not meant to bend. GM says it is "aware of several hundred complaints" about this issue, but notes that there have been no reports of related accidents. In addition, over 19k examples of Cadillac CTS from the 2013 and 2014 model years are being recalled over windshield wipers that might not work after a jump start. Finally, GM is also bringing in 477 examples of its 2014 Chevy Silverado, Tahoe and GMC Sierra (though not the Yukon) to fix a problem with a tie rod in its steering rack. As ever, all recall repairs will be performed free of charge, and GM is now estimating that recall-related actions this quarter will result in an estimated $200-million charge against its second-quarter earnings. Read the full announcement from GM below for further details.

New GM subcompact SUV spied, could be a Chevy or GMC

GM's pair of subcompact crossovers have been trundling along for a while now. The Buick Encore was the first for Americans in the 2013 model year, and the Chevy Trax that was based on the Encore (an encore of the Encore, if you will) arrived for the 2015 model year. Each has undergone a mild update, but these spy photos could indicate their replacements are in the works. Or not. For starters, we can't be sure which GM brand this new SUV is destined for. Though the timing and its flowing lines could indicate Buick, the thick horizontal bars visible in the grille would indicate otherwise. The next Encore being at least related to this is at least a possibility. Making the case for GMC are those thick grille bars, the fact that it extends far below the lights, and may even rise above them, similar to the Acadia. And that rising beltline isn't that different from that of the Acadia. Arguing against the GMC idea is the Encore, which is almost always sold in GMC-Buick combo dealers. Much as the Acadia was made smaller to eliminate confusion and in-house competition with the Enclave, it's hard to see GM opting to resurrect such an issue at the bottom end of the SUV market. That means we're leaning toward this little SUV wearing a Chevy bowtie. The split grille with a large lower section and small upper section is the brand's current design language, as seen on the new Malibus and Cruzes. The shape is vaguely Equinox-like. And like Buick, Chevy also has a subcompact crossover ready for replacement: the Trax. Now, our photographer reports he's seen another subcompact testing that has Blazer design cues, but in this crossover-hungry market, we wouldn't be surprised if two similarly sized but differently styled Chevy crossovers make the grade. It's a strategy that's working pretty well for Jeep. We'll no doubt be seeing more of these disguised test vehicles milling about the country in the coming months, so perhaps we'll eventually get a better idea of what this is before more official information starts trickling out within one or two years. Related Video: Featured Gallery GM Subcompact Crossover spy shots View 10 Photos Image Credit: SpiedBilde Spy Photos Buick Chevrolet GM GMC Crossover SUV buick encore chevy trax