2010 Jeep Grand Cherokee Laredo 4wd on 2040-cars

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Watch this 840-hp Jeep Grand Cherokee SRT8 walk away from GT-Rs and M3s

This last-generation Jeep Grand Cherokee SRT8 does things that SUVs just shouldn't be able to do, like win drag races against tuned Nissan GT-R and BMW M3 coupes. Granted, the owner isn't coming into this fight with a stock Jeep – far from it. In addition to twin turbos whistling away, he says the engine is a 449-cubic-inch V8, which is nearly 7.4 liters of displacement. As it runs here, the driver claims that the turbos are pumping out around 14 psi of boost to give an estimated 840 horsepower. What's more, he further maintains the powertrain could reach around 1,200 hp with things fully cranked up. Even somewhat dialed back, this Jeep is ready to take on a breadth of formidable challengers, including a couple of Chevrolet Corvette models and a Lamborghini Aventador. Check out the video to see how this menacing Grand Cherokee fares in a day at the races.

2018 Alfa Romeo Stelvio Quadrifoglio vs. 2018 Jeep Grand Cherokee Trackhawk: On-paper sibling rivalry

Pricing was revealed for the 2018 Alfa Romeo Stelvio Quadrifoglio, and with its $81,590 price tag, it's within range of yet another high-performance SUV from Fiat-Chrysler: the 2018 Jeep Grand Cherokee Trackhawk. The Hellcat-powered Jeep is more expensive than the Stelvio at $86,995, but depending on options, the price advantage might go either way. This left us wondering, how similar are these two high-powered SUVs? Besides sharing the same number of words in their very-long names, we took a look at some of their performance specs and put them in the spreadsheet below. As always, if you want to compare either of these with other speedy SUVs, be sure to try out our comparison tools. As far as outright speed, both SUVs are surprisingly close. The Trackhawk is just a bit quicker in a straight line, hitting 60 mph in just 3.5 seconds as opposed to the Alfa's 3.9. The Jeep's 180-mph top speed is also 3-mph quicker than the Alfa. But neither of these differences is especially huge. What makes this interesting is how different the paths each SUV takes to get to its results. The Trackhawk accomplishes the task with pure grunt. It has Dodge's Hellcat supercharged 6.2-liter V8 making 707 horsepower and 645 pound-feet of torque to overcome its hefty 5,363-pound body. The Alfa, on the other hand, makes do with less power and torque, 505 and 443, respectively, from its twin-turbocharged 2.9-liter V6. It has less weight, though. Exactly how much less we're not sure, since Alfa hasn't revealed that number, but a regular Stelvio weighs right around 4,000 pounds, so we would guess the weight is similar, possibly a little more. View 14 Photos The differences in how each SUV achieves its performance should result in pretty different driving characteristics, and probably different buyers. Each SUV's bragging points also indicates this. The Trackhawk boasts an impressive 11.6-second claimed quarter-mile time, something that American muscle car fans everywhere care about. The Alfa brags about how it's the fastest production SUV to lap the Nurburgring, something sure to impress fans of foreign cars and those that value handling over straight-line performance. So really, although these two SUVs have performance similarities, they're also very different, and the right one for you depends on what you value. View 29 Photos Also, as an afterthought, we wonder if the guys that attempted a Viper record at the 'Ring would be up for trying to break the Alfa time with the Jeep.

Four Wheeler crowns Ultimate Factory 4x4... who wins?

Nearly every automaker doing business in the SUV or pickup truck segments offers a package designed to improve the off-road capabilities of its wares. But, of course, not all such factory kits are created equal. How, then, to separate the wheat from the chaff? Gather each of them up and put them through their paces, naturally.
The folks from Four Wheeler and PickupTrucks.com joined forces to run just such a comparison test, with the winner named the Ultimate Factory 4x4. A total of seven vehicles showed up to the fight: the 2012 Ford F-150 SVT Raptor, 2013 Jeep Wrangler Rubicon, 2012 Nissan Frontier PRO-4X and Xterra PRO-4X, 2012 Ram Power Wagon, and 2012 Toyota 4Runner Trail and Tacoma TRD T|X Baja Series.
With the contestants in place, the whole crew put each vehicle through a battery of tests that included skidpad and acceleration measurements, a hillclimb, a rocky stairstep course and a rock garden. Considering the nature of the beasts, on-road ride and comfort were not part of the routine.