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GM applies for LT5, LTX trademarks... are new small block variants coming?

Recently discovered General Motors trademark applications for LT4, LT5, LT88 and LTX have observers wondering what kind of high-performance offerings could be on their way. A new LT4 would mark a return of the engine designation first used on the Corvette Grand Sport, SLP Pontiac Firehawk and SLP Chevrolet Camaro SS from 1996 and 1997. Supposition at Corvette Forum - which provided advance intel on the C7 like these leaked images - believes a new LT4 could go into the high-performance trim of the next-gen, 2015 Camaro that would be more powerful than the 580-horsepower Camaro ZL1.
Seeing an LT5 again would also be déjà vu - in its former life it was a 5.7-liter V8 for the C4 Corvette ZR-1 from 1990-1994 designed by Lotus, producing from 370 hp to 405 hp. A mix of rumor and hope is that the new LT5 will be a supercharged evolution of the 6.2-liter LT1 (pictured) placed in the new C7 Corvette, and that it will go into the C7 version of the ZR1 pumping out something like 700 hp.
The LTX trademark is, as with that last letter, a complete mystery. If the "X" isn't a generic way to denote the whole LT family, it's wondered if it LTX could refer to a crate motor offering like the LSX.

Porsche, Jaguar continue dominance in 2015 JD Power APEAL study

The top of JD Power's 2015 APEAL Study has not changed much in the last year. Porsche remains No. 1 with Jaguar nipping at its heels, although both premium brands saw their overall score fall compared to 2014. For those that need a refresher, the APEAL Study looks at how "gratifying" a vehicle is to own and drive, rating cars and brands on a 1,000-point scale. The industry average for 2015 has increased from 794 to 798, while the total number of automakers that finished above the curve increased from 16 to 20. While Porsche and Jaguar finished at the top, their scores dropped eight and seven points, respectively, to 874 and 855. The top "non-premium" brand was Mini, which scored an impressive 825, up from 795. If the BMW-owned British marque is still a bit too premium for your tastes, last year's non-premium winner, Hyundai, did climb five points and is this year's runner up. At the opposite end of the scale, Smart sits at the very bottom of the rankings, with a score of 683 (it didn't appear on the 2014 rankings). Fiat also dropped, from fourth worst in 2014 to second worst in 2015, despite the 500 being named most appealing city car. Subaru made an impressive climb, from third worst to seventh, falling just 10 points shy of the industry average and two points south of the non-premium average. In the individual vehicle segments, eight brands earned multiple awards, with Ford, Chevrolet, and Porsche earning three apiece. Surprise segment victories included the new Ford Expedition, which beat out Chevy's popular Suburban. The Infiniti QX80 bested the likes of the Cadillac Escalade and Range Rover for best large luxury SUV, and the Dodge Challenger beat its muscle car rivals from Ford and Chevy. Most of the victories, though, were quite predictable. The Mazda6 and CX-5 took wins for the midsize sedan and compact SUV categories respectively, while the Volkswagen Golf captured the compact car win. The Ford F-150 won the large pickup category, while the Porsche Cayman was named most appealing compact premium sporty car. Check out the official release on the 2015 APEAL Study, available below, from JD Power. 2015 U.S. APEAL Study Results The latest safety-related technologies are among the drivers of customer satisfaction with new vehicles, according to the J.D. Power 2015 U.S.

GM recalls 3.6 million vehicles for airbag-software problems

The Basics: General Motors is recalling 3.64 million vehicles across its lineup for an airbag-related issue. The recall covers the 2014-2015 Buick LaCrosse, Chevrolet SS, and Spark EV; 2014-2017 Chevrolet Corvette, Trax, Caprice PPV, Silverado 1500, Buick Encore, and GMC Sierra 1500; and 2015-2017 Chevrolet Tahoe, Suburban, Silverado HD, GMC Yukon, Yukon XL, Sierra HD, Cadillac Escalade, and Escalade ESV. The Problem: Affected vehicles have a sensing and diagnostic module that controls the airbags and seat-belt pretensioners. The software it uses has a defect that can prompt the module to run a diagnostic test under specific driving conditions, which will also deactivate the front airbags and pretensioners. This means that it would be possible for those safety systems to not activate in a crash, potentially leading to injury or death. Injuries/Deaths: General Motors began an investigation that led to the recall after a 2014 Silverado was involved in a crash in which the airbags did not deploy. No information was given as to injuries or deaths. The Fix: Owners can bring their vehicles to a local General Motors dealer where a software update will be installed to fix the issue. The fix will be free of charge. If you own one: General Motors will contact owners of affected cars, and owners can check whether their vehicles are affected by visiting entering their vehicle identification numbers at either the GM Owner Center website or the NHTSA website. Owners can then schedule a time to have the update installed. Related Video: