2004 Gmc Yukon Denali Sport Utility 4-door 6.0l on 2040-cars

Auto blog

Next-gen GM SUVs caught wearing new boxy bodies [w/video]

We recently drove the brand-new 2014 Chevrolet Silverado and found it to be vastly improved compared to the outgoing model. And now that The General's pickup trucks have been squared away, it's time to focus our attention onto their passenger-friendly companions, the Chevrolet Tahoe and GMC Yukon (above).
Our spy photographers have passed along a huge smattering of photos (and a video), showing the new SUVs out testing. Both the short- and long-wheelbase models were spied, and while the overall shape of the vehicles hasn't changed all that much, we expect the updates to be substantial. In addition to new powertrain options, like GM's new small-block V8, we expect the interiors of both SUVs to get massive makeovers, providing better materials throughout their cabins and quieter, more refined environments. We even hear that some trick new suspension developments may be in store for upper-end models.
Visually, these spy shots allow us to see a couple of new details on the SUVs' front and rear fascias, including LED running lamps on the Yukon and some interesting LED taillamp treatments. Of course, the obvious third party missing from this set of photos is the Cadillac Escalade, but as we reported earlier, GM is working to further differentiate the 'Slade from the rest of the fullsize SUV lineup, and is working to make the new model "much less ostentatious."

Supercharged 2015 GMC Yukon Denali sounds evil, runs 0-60 in 4.5 seconds

Speeding along in a sports car is undoubtedly a ton of fun, but some owners need the ability to carry a lot of people and their stuff and don't want to sacrifice the ability to put the power down. The tuners over at Hennessey have that demographic covered with their growling, supercharged power kits for the GMC Yukon Denali. The upgrades come in three forms for the SUV's 6.2-liter V8: HPE550 with 557 horsepower, HPE600 with 605 hp and HPE650 with 665 hp. This video showcases the full-bore version, and this Denali can definitely hustle in a straight line. The power bump comes courtesy of a 2.9-liter supercharger, intercooler and high-flow cylinder heads to add over 200 horsepower compared to stock, and the final result is a bellowing SUV that rears up off he line to throw the driver back into the seat. The sprint to 60 miles per hour lasts just 4.5 seconds. Check out this hasty hauler in action in the video above.

GMC Syclone pickup returns via Special Vehicle Engineering

The original GMC Syclone was a 1991 mid-size Sonoma pickup turned muscle truck. Its heavily modified 4.3-liter V6 sported a turbocharger, intercooler, and modified internals, raising output to a Corvette-baiting 280 horsepower and 350 pound-feet of torque. The engine was paired with a four-speed automatic, rear-biased all-wheel drive, and four-wheel antilock brakes (the coming thing). With an all-black livery and a lowered ride height, the Syclone looked the business, and backed up those looks with a 0-to-60 time of 4.3 seconds and a 13.4-second quarter-mile, according to contemporary magazine testing. Given all the recent interest in high-performance pickups, it's amazing that GMC hasn't revived the Syclone. But where manufacturers leave an opening, the aftermarket steps in — in this case that's Specialty Vehicle Engineering, which as CNET reports is resurrecting the nameplate for a build of 100 new Syclones, based on the GMC Canyon, which will update the idea a lot more horsepower. The 2019 Syclone takes as its starting point the extended-cab version of the Canyon. The engine is again a V6, this time a 3.6-liter fitted with a supercharger and a custom cat-back exhaust system, upping output to 455 ponies from the stock 306. SVE's Syclone can be had with rear- or all-wheel drive, and it, too, features upgrades to the brakes and chassis. Six-piston front calipers are fitted in place of the standard four-piston units, and the slotted front rotors are upsized from 12.2 inches to 13.6. The suspension is lowered by two inches up front and five inches at the rear, with stiffer traction bars, bushings, dampers, and a heftier rear anti-roll bar. Unlike the original, the modern Syclone can be had in colors other than black — any of the standard Canyon hues are available — but the appearance is customized with rocker-panel extensions, body-color grille and rear bumper, and a composite hood insert. The interior gets embroidered logos and badges, including a numbered plaque on the dash. The price for the Syclone is $39,995 — that's for the package, on top of the cost of the truck. But at least ordering is easy: The Syclone package can be ordered through select GMC dealers.