Tough truck with calming demeanour

Tough truck with calming demeanour

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Photos by -Autonet.ca
Joe Duarte
Published: 23 01 2007

As big as the mountains after which it is named, the GMC Sierra evokes images of the rock-solid, time-spanning purple-mountain majesty pickup buyers expect from their trucks.

Yet, GMC's truck has always had the looks and reputation of upscaleness – almost a truck too snobby for real work. It's never been "Built Tough" or "Like a Rock", but has always garnered a legion of fans who like that it is "Apart From the Herd".

GMC pickups have always been a bit softer than their Chevy siblings, and the last generation took it perhaps to the point where real truck owners stopped paying attention. It may still be able to act like a work truck, but it looked a bit too gentle.

For 2007, the rugged-looking, square-jawed slab-sided GMC pickup is back marginally longer overall, riding on an identical wheelbase, but wider and higher than it's predecessor (which continues in '07 as the Sierra Classic).

This results in a higher ground clearance, though the load height is also higher (about two to 2.5 inches in both cases). But once you get the cargo in the bed, it will be easy enough to secure it thanks to a variety of in-bed accessories -- boxes, partitions, tracks and clips to contain or separate cargo you don't want to have free-range abilities or you don't want hanging out with cargo from the other side of the tracks.

Payload has been increased substantially, with the new Sierra eclipsing its predecessor by 266 kg (587 lbs.), with a Gross Vehicle Weight Rating increase of 227 kg (500 lbs.). The cargo box itself is deeper, though marginally narrower and retains the length. The result is an increase of over 100 litres in cargo volume (about 4 cubic feet).

Cargo can also be carried inside the cabin, thanks to the split, flip-up rear seat bottom. And whatever can't fit inside or in the box can be trailered along, with the new Sierra basically retaining the trailer ratings from the previous generation.

The cabin is considerably updated, but features the same attention to detail and level of comfort from the previous generation. Storage cubbies abound throughout and all are appreciated. The front can be equipped with a full width bench or individual driver and passenger seat separated by a huge console that will house just about anything you need to carry (including a kitchen sink, we're guessing).

Because of the elevation of the floor, the step-in height is about an inch and a half higher.

Power comes from a choice of a 4.3 V6 or a range of V8s ranging in displacement from 4.8 to 6.0 litres. Our test vehicle came with the flex-fuel 5.3 V8, which means it can run on E85 ethanol/gasoline blend (85 percent ethanol, 15 percent gasoline), if we could buy the fuel anywhere outside of Ottawa.

Anyways, said V8 also boasts a cylinder management system, which means it takes four cylinders off line when the truck is just cruising along. During our usual even mix of city and highway driving, it returned an average of 14.9 litres per 100 km (which really isn't all that bad for a full-sized pickup).

However on an 845-km highway run from Toronto to Windsor and back, it returned 13.8 litres per 100 km on the southwest leg into the wind, and an amazing 10.5 on the way back with the wind at its back. Overall, the week ended up at 12.9 litres per 100 km of travel over 1132 km, which we consider pretty damn good for a large truck.

Now this doesn't mean you'll want to make the Sierra Extended Cab your daily commuter, but it's good to know it will deliver a reasonable range with savings when it's called upon to make that long trip.

And if it needs to carry a full load, it will do so quite comfortably while retaining its upscale looks and pampering its occupants. As far as pickups go, this one's a keeper.

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