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Hennessy wastes no time in supercharging the 2015 Cadillac Escalade

The ink is still drying on the all-new 2015 Cadillac Escalade sales brochures, but that hasn't stopped Texas-based Hennessey Performance (HPE) from leaping out of the gate with its own high-performance variant. In stock form, the big fourth-generation Cadillac flagship arrives with a new small block naturally aspirated 6.2-liter Ecotec3 V8 delivering 420 horsepower and 460 pound-feet of torque. Fresh out of the showroom, the 5,900-pound SUV will sprint to 60 mph in 5.9 seconds.
While that is plenty fast for some owners, others don't want to be shamed by a 550 horsepower Mercedes-Benz GL63 AMG or a 510 horsepower Land Rover Range Rover Sport - both will leave the stock Escalade at a stoplight.
The team at HPE has come to the rescue with its HPE550 supercharger upgrade, which includes a belt-driven supercharger, air-to-water intercooler, recalibrated engine management software and a three-year/36,000 mile powertrain warranty. With 6 psi of boost, the direct-injected 6.2-liter is tuned to deliver an impressive 557 horsepower and 542 pound-feet of torque - gains of 32 percent and 18 percent, respectively, over stock. Although HPE isn't releasing performance figures as of yet, our math says that should be enough power to put the two Europeans in the Cadillac's rearview mirror. The company also offers a set of 20-inch lightweight H10 forged monoblock wheels, to further improve performance.

Remembering Pierre Cardin's automotive legacy

Pierre Cardin has passed away at age 98, and while the designer had a great impact on the world of fashion, he also brought his signature style to the automotive realm, chiefly with the unlikely partner of American Motors. At the dawn of the 1970s, AMC decided to seek out a little glamour for its freshly renewed product lineup by having famous fashion designers work their magic on AMC cars. The first model to get the fashion treatment was the Hornet Sportabout wagon, with a special Gucci edition that became available for 1972. Later that same year, Pierre Cardin's Javelin was introduced. The Cardin Javelin arrived midway through the '72 model year as an interior option package. The designer had submitted as many as 10 proposals to AMC, and the chosen selection was a black interior with a wild multi-hued stripe of silver, white, red and purple that grooved across the seats, touched the door panels and continued onto the headliner. "People should feel like they're sitting in a living room rather than a machine," the designer was quoted in ads introducing his eponymous Javelin. In a press release, AMC said, "Cardin takes an ultra-modern abstract approach to his interior design." The Cardin interior option package was available with specific exterior colors: Snow White, Stardust Silver, Trans Am Red, and Wild Plum. For the '73 model year, Diamond Blue was a new exterior color option. The Pierre Cardin option was only $85 and was offered exclusively on the Javelin SST, although it's reported that the Pierre Cardin option also appeared on a handful of Javelin AMX models. For 1973, you could officially get a Pierre Cardin Javelin AMX. A total of 4,152 were built over the two model years. AMC's next fashion special was the Matador coupe, but the automaker tapped Oleg Cassini for that gig. Pierre Cardin was not finished with the automobile business, though. In 1975, he put his touch on the Sbarro Stash, an obscure supercar based on the SV1, with the result displayed at the Paris auto show. The designer next customized a run of early-'80s Cadillac Eldorados, and this time the treatment extended beyond the interior. A redesigned front end featured hidden headlights behind a full-width horizontal-car grille but unfortunately made the already-considerable front overhang even longer; the rear treatment was similarly modified with the factory vertical taillights replaced with horizontal units.

Fullsize GM SUVs have a problem that's making owners sick

Some fullsize SUV owners are getting sick, thanks to a buffeting and vibration problem in 2015 model year examples of the Chevy Tahoe and Suburban, Cadillac Escalade, and GMC Yukon. According to owners' complaints to the National Highway Traffic Safety Administration, the issue can vary from an annoying vibration inside the cabin to an experience so severe that it leads to dizziness and headaches. General Motors is aware of the complaints, but the fix isn't so simple. According to spokesperson Tom Wilkinson to Autoblog, the company "has been tracking this issue for a while." The problem has a fairly low incidence rate, but when it does occur the issue can be "uncomfortable and annoying for owners." There's no precise cause for the issue, Wilkinson claims, and in some cases, simply balancing the tires or changing the door seals can make it go away. However, not all of the fixes are so simple. AutoGuide dug deep into the problem and discovered a GM preliminary information bulletin that advised dealers to remove the headliner and to check the roof's bonds to the bows that go across the vehicle. However, that document included a note that the solution might not entirely eliminate things. According to AutoGuide, adding Dynamat insulation to the roof sometimes helped the problem. A GM spokesperson also told AutoGuide the company fixed the problem at the end of the 2015 model year, and didn't go into any more detail. This roof issue seems linked to some of the worst droning in these SUVs. According to one complaint from a 2015 Suburban owner to NHTSA: "Roof will not remain attached to the roof bows. This causes the buffeting similar to a window being down when all are up. The results span from annoying to painful." A 2015 Yukon owner claims to have another alleged cause for the problem in a NHTSA complaint from February 2015. This person brought their SUV to the dealer seven times over the course of four weeks for vibrations. The dealer replaced the driveshaft, suspension components, and more, but nothing worked. According to an engineer to the service adviser: "In an effort to prevent roll overs, they designed the frame and body mounts too stiff. There are 40 engineers working on issues, they have no solutions that work across the board." Wilkinson told Autoblog that GM is working with customers on an individual basis to rectify things. Since these are newer vehicles, dealers should also fix the problem under warranty.