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Chevrolet Colorado ZR2 concept suggests a diesel off-road future

"It takes the Colorado to a whole new place." – Mark Reuss The Chevrolet Colorado looks set to gain a more capable off-road version, with the company previewing a potential design direction with a ruggedized concept Wednesday at the Los Angeles Auto Show. Called the Colorado ZR2, the concept brings back the name used on off-road-tuned S-10 and Blazer models in the 1990s and 2000s. The ZR2 has a track that's four inches wider than the Colorado Z71, which is currently the line's most capable off-roader. The ZR2 is fitted with a new grille, power-dome hood, custom wheel flares and off-road-style fascia that reduces overhang and has flip-out aluminum tow hooks. It's all slathered in an outdoorsy hue dubbed Cyprus Green. The are electronic locking front and rear differentials, skid plates and mono-tube coilover shock absorbers. It all rolls (or crawls) on 275/65R18 off-road tires wrapped around custom 18-inch aluminum wheels. There's also a spare tire assembly mounted in the bed, which has a spray-in liner and 48-inch lift jack should things go afoul on the trail. "It takes the Colorado to a whole new place," Mark Reuss, General Motors executive vice president of global product development, said at the reveal. Power comes from the 2.8-liter Duramax diesel engine making 181 horsepower and 369 pound-feet of torque. This engine will arrive later in the year in the production Colorado. While the ZR2 remains only a concept, it suggests a new path for the Colorado – one we hope Chevy decides to take. Chevrolet Introduces Colorado ZR2 Concept Aggressively styled, more capable and driven by new 2.8L Duramax diesel engine LOS ANGELES – Chevrolet today introduced the Colorado ZR2 concept – a vision of how Chevrolet could take the all-new midsize truck's off-road capability to the next level. It also showcases the new 2.8L Duramax diesel engine that will arrive in the Colorado lineup later next year. The aggressively styled concept builds on the capabilities of the production Colorado Z71 and advances the legacy of Chevrolet's previous ZR2 production models. "From the bold stance to the trail-ready special equipment, the Colorado ZR2 is all about the fun of driving where the pavement ends – and doing it in characteristic Chevy style," said Tony Johnson, Colorado marketing manager.

GM's Oshawa plant may close after Camaro production moves

Most of the time, when vehicle production is moved from one assembly plant to another, it spells bad news for the former. While General Motors won't go so far as to say its Oshawa, Ontario factory, which is losing the Chevrolet Camaro to the Lansing Grand River plant, is in trouble, analysts seem to think the factory's days are numbered. Forecasts for the facility are far from positive. The loss of the Camaro this year, combined with GM's targeted shutdown of a single-shift assembly line responsible for the fleet-only Chevy Impala Limited and the Equinox crossover is a bad enough omen. But with AutoForecast Solutions CEO Joe McCabe telling The Detroit News that the plant's other two products, the Cadillac XTS and Buick Regal, aren't likely to stick around beyond 2017, things look decidedly grim at Oshawa. "There is a fairly strong chance that the plant could close," Jeff Schuster, senior VP of forecasting for LMC Automotive, told The Detroit News. That doesn't mean that Unifor, Canada's auto union, and the Canadian government are going to let the factory die without a fight. And with the latter chipping in $10 billion as part of GM's 2009 bailout, you might think it has a degree of leverage in the situation. A meeting between the government and the Detroit Three at the 2015 North American International Auto Show revealed that Oshawa is already a topic of conversation. "We made it very clear that we would like to see an indication on the future of Oshawa sooner, in particular because the timing is very challenging for our supply chain to be able to adjust to potentially future orders or changes, but also to know that there are going to be future opportunities at Oshawa," Ontario's Minister of Economic, Development, Employment and Infrastructure Brad Duguid told The Detroit News. "Bottom line: It's time they made a longer-term commitment here," Unifor President Jerry Dias said, echoing Duguid's statements. It's unclear if this sort of strong talk will be enough to save 3,300-plus employees, although based on the analysts' forecasts, we doubt it.

Diesel Power finds the ultimate modified oil-burner

For nine years, Diesel Power magazine has run the Diesel Power Challenge, this year's grindfest being "a week-long torture test that features seven events, nine trucks, 8,000 horsepower, and nearly 15,000 pound-feet of torque." The road to being crowned "the most powerful truck" starts with a dyno run, and then continues through the completion of a CDL-style obstacle course, an eighth-of-a-mile drag race while towing a 10,000-pound trailer, a quarter-mile drag race without a trailer, a fuel economy test in the mountains and finally a sled-pulling test through a 300-foot-long packed-mud pit.
What kind of trucks get into such a fight? Last year's winner, for instance - who upgraded his truck this year to prove he didn't "luck into the win" - drives a 2008 Ford F-250 Super Duty with a 6.4-liter Power Stroke V8 upgraded with a custom intake, Elite Diesel triple turbos and a two-stage nitrous system. Another competitor has a 2005 Dodge Ram 2500 powered by a 5.9-liter Cummins inline-six, upgraded with Garrett turbos, dual-stage nitrous, a seven-inch exhaust stack and twin fans built into the bed to cool the Sun Coast Omega transmission. The numbers on that truck: 1,255 horsepower, and 2,063 pound-feet of torque at the wheels. Naturally, as the image above might suggest, things don't always end well.
You'll find all five videos covering this years challenge below. A scene in the dyno video sums it all up perfectly: a competitor leaves his nitrous on too long and the crew is treated to some ominous poppings, he leans out the window, throws both hands up and shouts, "Amer'ca!"