Chevrolet Silverado vs Holden Trailblazer

What's the difference?

With its unique V8 soundtrack, all-terrain capabilities and sumptuous comfort, the ZR2 is a quintessential American muscle truck that's as capable of carting crews and accessing rugged worksites during the week as it is towing boats, horse-floats and caravans or getting muddy on weekends. For either work or play, there's a lot to like here.

The Trailblazer is a solid all-rounder and deserves the consideration of those in the market for a decent seven-seater 4WD. It does everything well without ever really excelling at any one thing.

Is it fantastic? No. Is it a game-changer? No. Does it represent pretty good value for money in the grand scheme of things? Yep. 

The pick of the bunch for me is the LTZ – solid, off-road capable, and suburbs-friendly with just a hint of leather-appointed class. In the LTZ, you get everything worthwhile in the Trailblazer mob and if you’re a family man you won’t feel the need to fork out an extra $1000 for the Z71’s try-hard window dressing.

The Trailblazer is a mostly comfortable SUV wagon, stacked with features and is well worth your consideration if the Isuzu MU-X, Pajero Sport and Toyota Fortuner don’t float your boat.

The Silverado’s extensive remanufacturing to RHD, performed on a purpose-built production line in Melbourne, meets OEM standards of fit and finish.

As the off-road focused 1500 model, the ZR2 has hardware and detailing consistent with its rugged bush-bashing persona, highlighted by aggressively treaded mud-terrain tyres and unique raised suspension with high performance dampers.

Other ZR2 features include a raised bonnet with ZR2 applique, ‘off-road cut’ front bumper, bash plates, black grille with ‘Flow Tie’ (flow-through) bow-tie motif, ‘Performance Red’ chassis-mounted front recovery hooks, concealed dual-outlet exhaust, black fender flares/door handles/bumpers/window surrounds and chrome ZR2 badges.

It has a tough and purposeful look with bluff-fronted styling and an imposing stance. 

An expansive length of almost 6.0 metres (5931mm) and a 14.4-metre turning circle highlight formidable (and at times impractical) dimensions for urban life.

The cabin is spacious and airy with a tasteful blend of contrasting tones and textures combined with many soft-touch surfaces, yellow stitching along seams and splashes of chrome and satin chrome creating a plush look and feel.

The Trailblazer is a solid-looking wagon – all clean, tight lines from front to back – and overall it has a real squat and substantial presence. If we’re going to get all ‘fancy Dan’ with our hyperbole: chrome-accented daytime running headlights swoop back along the chunky body to slick LED tail-lights. If we’re sticking to basics: the Trailblazer looks good.

Inside, the tweaked interior has a tidy if rather basic feel to it – but that’s not a bad thing in a wagon that will have to cop dirt and dropped ice creams amid the general chaos of day-to-day life.

The leather-trim seats add a touch of class to otherwise family friendly dimensions and environment.

The ZR2’s hefty 2587kg kerb weight and 3300kg GVM results in a 713kg payload, which is modest given a seated crew of five big tradies could use up about two-thirds of that payload capacity before loading any of their gear.

It can also legally tow up to 3500kg of braked trailer on a 50mm ball and up to 4200kg on a 70mm ball. The latter figure is 300kg less than the LTZ due to the specialised off-road suspension.

However, given the ZR2’s 6851kg GCM rating (or how much it can legally carry and tow at the same time), you would be left with a mere 64kg of vehicle payload if you wanted to tow the maximum 4200kg.

That’s barely enough for a driver - and a light one at that. Fact is, few if any owners in real-world use would need to tow 4200kg, but it’s important to be across these legal limits if you’re planning to.

The load tub is protected internally by a spray-on liner and offers almost 1.8 cubic metres of load volume. Its load floor is 1776mm long, 1813mm wide and sits 569mm deep, with 1286mm between the rear-wheel housings. More than wide enough for hauling Aussie or Euro pallets.

There are also 12 load-anchorage points, power assistance for lowering the tailgate and a tub camera to keep an eye on loads when driving. The rear bumper provides surefooted tub access using either the centre step or concave side-steps.

All occupants enjoy luxurious space, particularly rear passengers thanks to easy entry created by the wide-opening doors, a flat floor with no transmission hump for the centre passenger to straddle and palatial head and legroom even for tall people. Combined with ample shoulder room, a full crew can travel in enviable comfort.

Cabin storage for the driver and front passenger includes two bottle holders and a bin in each door. There’s also a large glove box and the centre console has an open tray and two USB ports up front, two bottle holders in the centre and a big box at the back topped by a padded lid that provides comfy elbow support.

Rear passengers get a bottle holder and bin in each door, plus more USB ports and two more pairs of bottle holders in the rear of the centre console and in the bench seat’s fold-down centre armrest.

There’s also storage pockets on both front seat backrests and handy compartments for small items are cleverly concealed within the rear seat’s upper-backrest cushions. Its 60/40-split base cushions can also swing up and be stored vertically if more internal load space is required, or to access ample under-seat storage.

Climbing in is easy enough with a sturdy "overhead assist handle" for all comers and goers.

All of the Trailblazer’s seats are mostly comfortable except they are quite flat and hard, which may prove a hindrance over longer trips. The driver’s seat is six-way electrically-adjustable and there is little in the way of lumbar support.

The second row will better suit two passengers than three for long-distance comfort but there is enough room all round – head, shoulders and legs – to avoid most complaints, for a little while anyway.

Third-row passengers will need to be children or those of a shorter stature to cope with the ‘back of the bus’ squeeze – and even then trips should be kept to shorter distances to avoid an in-car riot. It’s not a terrible place to be, in the third row of this thing, but it’s not ideal either – pretty much in keeping with the rear-row offerings of its rivals.

Back up the front again and the dash design is clear, user-friendly and easy to get used to with day-in, day-out use.

There is a fair bit of storage space in the cabin but some of it is awkward to access and actually use. The glove box is big enough to cope with one or two handfuls of bits and pieces. There is a sunglass holder up near the rear-view mirror.

Passengers in the back also get air vents and manual aircon control.

There are two cup holders in front of the small centre console housing the USB port which, when used, eats into that available space.

All doors have a moulded bottle bulge, which wouldn’t cop our CarsGuide water bottle without forceful encouragement.

The second-row passengers get a fold-down centre arm-rest/cup holder when there’s no one sitting in the middle. Passengers in the back also get air vents and manual aircon control.

With all seats up, if you pack to the roof, there is 235 litres of cargo space at the very rear; with the 50/50 split-folding third-row seats folded down, there is 878 litres; with the second-row (60/40 split-fold and tumble) and the third-row seats down, there is 1830 litres of cargo space. There is a retractable cargo blind stowed away under the floor at the rear.

With the second-row seats folded forward, it is easy enough to get into the third-row seats; no contortionist moves required.

There are two 12-volt outlets in the centre dash; one at the back of the centre console (for second-row passengers); and one in the rear cargo area.

Up top, the roof rails are rated to carry 100kg.

The Trailblazer is available in three spec levels, each with a market-competitive price: base-spec LT (from $47,990, excluding on-road costs), LTZ (which we tested; from $52,490) and the limited-edition Z71 (from $53,490).

But those prices soon start to climb when you add in accessories such as all-weather floor mats ($130 for a pair), boot lip protector ($80) and a rigid cargo barrier ($960). Our test vehicle had a Power Blue (prestige paint) colour on the exterior, at a cost of $550.

All models have the 2.8-litre turbo-diesel engine and six-speed automatic transmission. The 4WD system is a dual-range part-time shift-on-the-fly set-up.

The LT’s standard features include cloth seat covers, 17-inch alloy wheels, a seven-inch touchscreen to go with its Holden MyLink infotainment system, Apple Car Play and Android Auto, Bluetooth connectivity, front fog lamps, signature daytime running lights, side steps, limited slip diff, rear parking sensors and a rear-view camera.

The LTZ gets all of that (although its touchscreen is eight inches) and more: integrated satnav, blind spot alert, forward collision alert and heated front seats and leather-appointed seat trim. It has 18-inch alloy wheels.

The Z71 has all of that gear as well as a distinctive sports look, replete with black bonnet, black mirrors, black exterior door handles, Z71 leather-appointed trim and 18-inch black alloy wheels.

Like the LTZ, the ZR2 is powered by a 6.2-litre petrol V8 producing 313kW of power at 5600rpm and 624Nm of torque at 4100rpm. It features cylinder deactivation to optimise fuel economy when full power isn't required.

This is paired with a refined 10-speed torque converter automatic, armed with an auxiliary external oil cooler ideal for heavy towing duties and off-road slogging. It also offers sequential manual shifting using steering wheel-mounted paddles and there are numerous selectable drive modes.

Its dual-range transfer case with push-button control offers the choice of '2WD High', '4WD High', '4WD Low' and '4WD Auto', with the latter being a full-time torque-on-demand system. It’s also equipped with driver-selectable front and rear locking differentials for optimum traction in the rough stuff.

The 2.8-litre turbo-diesel engine punches out 147kW at 3600rpm and its big-gun 500Nm at 2000rpm and is well-matched to a six-speed automatic transmission. This Trailblazer is, on paper, a very good tow vehicle with so much torque available and from down so low.

Its towing capacity is 3000kg (braked), but I’d prefer to see how it fared in a real-world tow test before I pass judgement.

GMSV claims official combined cycle (urban/extra-urban) fuel consumption of 12.7L/100km and the dash display was showing 15.3 when we stopped to refuel at the completion of our 397km test, which included our usual mix of suburban, city and highway driving of which about half was hauling a variety of payloads.

This compares to our own figure, calculated from fuel bowser and tripmeter readings, which was higher again at 16.8L/100km. That exceeds the usual 2.0-3.0L/100km discrepancy between official and real-world consumption but is still acceptable for a 2.5-tonne pick-up powered by a big petrol V8 in urban use.

So, based on our real-world consumption figure, you could expect a driving range of around 540km from its relatively small 91-litre tank.

Claimed fuel economy is 8.6L/100km (combined). We recorded 9.6L/100km fuel consumption after 200km of mixed driving, including about 30km of gravel tracks, and 10km of hard off-roading. As mentioned earlier, it has a 76-litre fuel tank.

The ZR2’s raised off-road suspension requires more of a climb aboard than the LTZ, but the low-slung removable side-steps fitted to our test vehicle certainly make boarding easier and are an accessory worth considering if most of your driving is on-road.

There are large handles on the truck’s A- and B-pillars to assist entry to the cabin where the driver is treated to multiple power adjustments of seat and steering wheel plus a large left footrest, which together provide a very comfortable driving position.

The ride and handling are outstanding, as the ZR2’s suspension combined with the additional cushioning of its baggy all-terrain tyres is commendably supple over bumps, yet it's surprisingly responsive to steering input without the ponderous feeling expected in a vehicle of this size and weight.

This response is optimised when the ‘Sport’ mode is selected as it sharpens steering, brake pedal feel and suspension tuning for a more engaging drive. It also activates the louder and freer-flowing exhaust setting and modifies the auto’s shift calibration, which allows the V8 to shine with a guttural roar under full throttle that is not only an aural delight but can quickly reach triple-digit speeds with remarkable ease.

By contrast, it can also deliver relaxed and fuel-efficient highway travel thanks to the V8’s auto cylinder deactivation and less than 1500rpm being required to maintain a leisurely 110km/h. Engine, tyre and wind noise are negligible at these speeds.

To test its payload rating we forklifted 475kg into the load tub which combined with our crew of two equalled a total payload of 655kg that was within 60kg of its legal limit.

The rear leaf-springs only compressed abut 35mm under this loading, which left more than enough bump-stop clearance to ensure there was no bottoming out on our test route. The ZR2 performed so effortlessly with this payload it was easy to forget we even had one.

Our only criticism of the driving experience was the tri-fold tonneau cover. When hauling loads, this accessory is designed to fold forward into a flat bundle that leans against the rear of the cabin with two adjustable struts to brace it in place (see photo).

This worked fine during suburban driving up to 80km/h but was not suited to higher speeds, as the increased air pressure made it flex enough to block the rear-view mirror's camera view. So, an alternative tonneau design would be preferable for those needing to do lots of highway travel with uncovered loads.

The LTZ is 4887mm long (with a 2845mm wheelbase), 1902mm wide (excl mirrors), and 1846mm high. It has a kerb weight of 2203kg.

Its turning circle is 12m but it feels like more of a cumbersome beast when trying to manoeuvre in the bush or in the city, though not enough so for that characteristic to be any sort of deal-breaker.

The tilt-adjustable, electrically assisted steering lacks any reach-adjustment, which is annoying, but it can still be counted on to deliver a precise feel – light at low speeds, heavier at high speeds – when pushing the Trailblazer along at a fair clip on open roads or in and out of corners.

Acceleration seems livelier now; there is more off-the-mark oomph for take-offs and safe, smooth overtaking, even on long gradual climbs, than before. The torquey engine and six-speed auto – with its smooth changes and gear-holding when appropriate – make for a high-achieving combo.

Ride and handling seem better than in Colorado7 guise although the tweaked suspension – Aussie-tuned coil-spring front and coil-spring live-axle rear – and Bridgestone Dueler H/Ts tyres* may account for some of that. However, we did feel some body-roll while driving along back roads, unlike the last time we were in a Trailblazer LTZ. (*The Trailblazer has a full-sized 18-inch spare.)

The locally tuned suspension is, at times, a bit too firm; when we hit heavy bumps and deep potholes on rough gravel tracks several times, we were unsettled because the Trailblazer’s suspension bashed its way over and through.

NVH levels on open-road bitumen can still tend towards the rougher side of things with diesel engine clatter, tyre roar and wind rush clattering a tune on your ear drums.

We completed a series of emergency braking scenarios – on bitumen and dirt – and the Trailblazer’s disc brakes – 300mm at the front and 318mm at the rear – helped rip us into a controlled stop.

Off-road, we had a ball because the beefy Trailblazer seems a much better fit for gravel-track fast blasts and slow-going bush driving than it does for any jaunts in the stop-start city.

Our drive loop included a decent bit of four-wheel driving – coastal sand, bush tracks peppered with rocks of all shapes and sizes, and shallow mud in a dried-out dam. Drive modes can be switched via the centre console dial between 2H, 4H and 4L; high range modes are actually represented by an ‘up’ arrow on the dial; low range is a ‘down’ arrow. Bonus: the Trailblazer’s 500Nm of torque is readily available from way down low.

The Trailblazer has a limited slip diff, 218mm of ground clearance and a wading depth of 600mm, which was never tested as our usual creek crossings were so bone-dry they were more like puddles. Approach, departure and ramp-over angles are 28, 25, 22 respectively.

Its armoury of off-road tech – auto hill-start assist, hill-descent control and more – make it almost unstoppable, straight out of the showroom, for anything demanded of it on a light- to medium-difficulty adventure weekend.

Its 76-litre fuel tank, however, hinders any claim it has to off-road touring potential.

The Trailblazer has 3000kg towing capacity (braked); 750kg unbraked.

Note: Holden has persisted with a system which, when you open a door, the front windows automatically slide down a bit, an action aimed at reducing air pressure when you close the doors. It remains annoying but we still weren’t annoyed enough to actually bother to check the owner’s manual for a possible hack to switch it off.

The Trailblazer range has a five-star ANCAP rating. The LTZ has seven airbags, and electronic stability control (ABS, EBD etc), rear view camera, front park assist, rear parking sensors, forward collision alert, blind-spot alert, lane-departure warning, rear cross-traffic alert, a tyre-pressure monitoring system and trailer sway control.

The second row has three child restraint anchor points and one ISOFIX child restraint anchor point.

Now comes standard with a class benchmark five years/unlimited km manufacturer warranty, plus five years of roadside assist.

Scheduled servicing is every 12 months/12,000km whichever occurs first, but there's no capped-price servicing. Expect a three year service bill of around $2000, which isn't outrageous for a vehicle of this type.

GMSV has an Australian network of 50-plus dealers across most states and territories and all dealerships can provide vehicle servicing.

The Trailblazer comes with a three-year/100,000km warranty. Lifetime capped price servicing includes a free inspection at one month, then $299 (at nine months/15,000km), $399 (18 months/30,000km), $479 (27 months/45,000km), $479 (36 months/60,000km) and so on.

(At time of writing, the LT was being offered for $45,990 driveway with a seven-year/175,000 warranty.)

Potential problems might include cumulative driveline wear and tear from people towing heavy loads (horse floats, boats etc).