RAM 2500 vs Audi RS Q8

What's the difference?

If you're a grey nomad with a massive caravan searching for something to do the big lap in, or a big boater seeking an effortless weekend getaway machine, then this sort of ute makes sense. The HD series shows just how much more muscle is available, for those who genuinely need it.

But if towing or hauling to the max isn’t your priority, then the far-more dynamic – and class-leading – Ram 1500 series does everything else with much-greater aplomb.

Note: CarsGuide attended this event as a guest of the manufacturer, with accommodation and meals provided.

The Audi RS Q8 Performance is a lot - of everything. It offers lots of power, lots of performance, lots of space and lots of luxury. But it’s also a lot of money, and at more than $250k it’s not going to be on everyone’s shopping list. It’s a very niche proposition for a small group of buyers. For those select few, those who want a lot of everything and who crave the ultimate of whatever product they’re buying, then the RS Q8 Performance is going to be a very tempting proposition - even if they never set any lap record in it.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and meals provided.

You can spot the HD facelift by the bi-LED headlights and bulgier bonnet, while chrome’s been replaced by black trim inside and out, including in the restyled grille, alloy wheels and side steps, for a more-modern appearance.

Both models are identical bar the badging. However, while they share a tri-link solid front axle system, the 2500 HD features coil-spring rear suspension, while the super heavy-duty 3500 HD relies on leaf springs. That’s for it to achieve maximum pulling and hauling capability.

Inside, the already-contemporary dashboard, with its 12-inch Tesla-esque portrait touchscreen, remains much the same as before, except for a few detail updates to accommodate the big new centre console, twin wireless charger housings, extra USB ports and restyled electronic instrument cluster.

Otherwise, it’s as vast as ever.

We don’t refer to ‘facelifted’ cars for no reason, the RS Q8 Performance has a number of visual changes.

These include a new Audi ‘singleframe grille’ and new front bumper design, with a new Matt Carbon trim package available to highlight that.

There’s also a new rear bumper design as well as new digital daytime running lights at the front and digital OLED lights at the rear.

The unique forged alloy wheels are another design change, but also bring a functional element. Measuring 23 inches they do a good job of filling out the wheel arches and give the RS Q8 Performance a purposeful stance and good proportions. But they are also 5kg lighter per wheel than the 22-inch rims on the RS Q8, saving unsprung weight to help the ride and handling.

Inside, Audi hasn’t made any dramatic changes to the design, which is fine because the brand does some of the best cabins on the market in terms of look and feel.

What is new is an aluminium inlay and an optional RS interior design package which provides a unique finish to the seats, with contrasting stitching, for an additional $4100.

As with all Walkinshaw Automotive Group utes (that includes the Silverado), the Ram HD’s fit and finish seem exemplary, with an insider suggesting the quality may exceed the North American factory original.

This is no small feat. Ateco Automotive, the instigator and original importer of over 35,000 (and counting) remanufactured left-hand to right-hand-drive DS, DT and DJ full-sized utes in Australia since the first 2500 HD rolled off the Melbourne production line in 2015, says “between 400 and 500” unique engineering pieces are necessary.

Compared to the pre-facelift versions, the DJ Series II sees a switching out of the old front bench seat, which meant the earlier versions were six seaters, to shapelier individual items. Apparently, comfort and convenience are what buyers prefer, since a large centre console with armrest is now included. It’s certainly seems plush and luxurious inside.

Along with greater storage, the Ram’s electronic instrumentation is new and the multimedia system has been updated, with extra USB ports as well as twin phone chargers.

The driving position might be compromised for some by a lack of reach adjustability for the steering column (unlike in the DT 1500), and the foot-operated park brake seems like an anachronistic nowadays, but otherwise everything is easy to reach and operate – despite being scattered all about – after you’ve learned what all the buttons and switches do.

Meanwhile, the now-fixed seats can accommodate a trio of burly occupants no problems due to the sheer width of the cabin.

Included are air vents, extra USB ports, a sliding back window and storage underneath the seat cushions and within a special floor compartment.

Owners can also create a raised floor section, by tilting both cushions up and folding down two corresponding bases for a flat and even load area, with additional hidden storage within the now-covered footwells.

Overall, the Ram’s cabin balances convenience and utility quite well.

Further back, the tub length is 1938mm, width is 1687mm and 1295mm between the wheel arches and height is 511mm. This compares to the Silverado 2500’s superior corresponding figures of 2089mm/1814mm/1317mm/533mm, respectively.

A swing-away step is provided to help tub access, as well as a spray-in bedliner, strut-assisted tailgate-close and 12-pin towbar fitted as standard.

Maximum towing capacities vary from 3.5 tonnes to an unmatched eight tonnes with the correct accessories. The 2500’s payload is 785kg while the 3500 more than doubles that. And standard exhaust brakes help with braking on long descents when fully laden.

Which brings us to the heart of the matter. Muscle.

While it’s easy to get swept up in the power and speed of the RS Q8 Performance, it’s important to remember that it’s an SUV and it needs to offer ‘utility’ as well as ‘sports’. 

With that in mind, the front seat occupants are well looked after with supportive and comfortable sports seats, with a good amount of small item storage spaces. 

The rear seats are surprisingly comfortable, despite the sloping roofline of this ‘coupe-style’ SUV. Audi has cut recesses into the ceiling to create more headroom, so it will be fine for anyone under six-foot tall. Despite there being five seat belts, this is realistically more of a four-seater for adults, although three smaller kids could squeeze across the back.

There’s also a pair of cupholders, two USB-C ports, a 12-volt outlet and your own climate controls for the rear passengers.

As for the boot, again it loses some volume because it’s not a wagon-style SUV, but there’s still a decent, square floor space with a claimed 605 litres of capacity.

So, overall the Q8 obviously isn’t the most practical version of an SUV, but it does well given its focus on style.

Audi updated the Q8 range earlier this year, with refreshed looks after seven years on sale and a plug-in hybrid powertrain to cater for new demand.

A new RS Q8 is coming later in the year, but the RS Q8 Performance has arrived first to make a bigger impact. It naturally gets a performance boost, but there are some other extras beyond more kilowatts.

These include RS ceramic brakes, lightweight 23-inch forged alloy wheels, Pirelli P-Zero tyres, unique aluminium inlays and a special RS layout for the digital instrument display.

Which is good, because the RS Q8 Performance costs nearly $25k more than the ‘standard’ RS Q8, priced from $255,800 plus on-road costs.

Luckily for a car costing a quarter of a million bucks, there’s also plenty of luxuries too, including Nappa leather upholstery, four-zone climate control and a 17-speaker 730-watt Bang & Olufsen sound system, amongst others.

When you compare it to its rivals on performance terms, in particular the Urus and Cayenne Turbo, the $250k asking price doesn’t exactly look ‘cheap’ but it is good value in comparison.

The Audi is a touch pricier than the BMW X6 M Performance at $250,900, but quite a bit more affordable than the Mercedes-AMG GLE63 S Coupe at $268,900.

Under the now-bulgier bonnet may be the torquiest engine money can buy, at least in something that does not require a special driving license. Or pilot's licence.

Completely overhauled with a redesigned engine head, larger intake and exhaust valves, a new turbo, heavier-duty pistons, a higher-pressure fuel system and upgraded intake manifold amongst other changes, the Cummins-sourced 6.7-litre in-line six-cylinder turbo-diesel unit now delivers 313kW of power at 2800rpm and 1458Nm at 1800rpm.

Formerly making 276kW and 1152Nm, the new figures are 13 per cent and 26 per cent better than before (respectively), reducing the power gap with the Silverado’s 350kW/1322Nm 6.6L V8 turbo-diesel, while easily leap-frogging it for torque.

At 3710kg (kerb), the HD’s power-to-weight ratio improves significantly despite putting on about 100kg, from 76.5 kW/tonne to 84.4kW/tonne.

Meanwhile, a ZF-supplied eight-speed auto replaces the old six-speed unit. It’s now a second faster to 100 at under 7.3 seconds and the spread of extra gears should improve highway fuel consumption, albeit slightly.

Drive is sent to the rear wheels in two-wheel drive (2WD) mode in most cases. However, 4WD High (4H) is also available via a part-time dual-range transfer case and is selectable on-the-fly, though it is not recommended for operation above 80km/h, while 4WD Low (4L) is for rougher terrain at very low speeds.

This is the latest iteration of Audi’s twin-turbo 4.0-litre V8 petrol engine - and it’s a beauty.

While this engine is used in a variety of models, for the RS Q8 Performance Audi has taken power to 471kW with 850Nm of torque, which, as mentioned earlier, makes it the most powerful internal combustion engine Audi has ever offered in a production car.

That’s also a big boost over the previous RS Q8, which managed 441kW/800Nm, and is only just shy of the 485kW/850Nm offered by its ‘cousin’, the Porsche Cayenne Turbo GT.

Audi claims that the RS Q8 Performance will launch 0-100km/h in just 3.6 seconds and keep going to an electronically limited top speed of 250km/h. We tried to test the acceleration time on a closed circuit, but driving into a very strong headwind the big SUV could manage only 4.4 seconds - which is still a very quick time given its size and luxury.

The engine is paired to an eight-speed automatic transmission and Audi’s trademark quattro all-wheel-drive system to help smoothly transmit so much power to the road.

Ram says the Australian Government doesn't mandate an official combined fuel consumption figure for full-sized utes like these, so there is no average economy number for us to share.

But the trip meter in two of our test vehicles said it consumed between 15 litres per 100km and 15.6L/100km of diesel fuel, and both had not been towing a trailer or load since being reset.

Despite the new ZF eight-speed auto’s revised final drive ratio (now 3.42:1 instead of 3.73:1) to help improve efficiency, clearly this is no Toyota Prius.

Based on those trip computer numbers, expect the 117-litre fuel tank to provide about 760km between refills. Handily, the 28.4L AdBlue reservoir comes with its own tank display on the dash.

Unfortunately you don’t get the most powerful production engine without some trade-off, and for the RS Q8 Performance that means significant fuel consumption. The official fuel economy rating is a very thirsty 12.2L/100km, but that's the best-case scenario too. If you partake in some spirited driving that unleashes the full potential of the engine will result in a higher rate of premium unleaded being consumed by the big V8. We saw returns in the high teens across our time, but that was largely open road driving, so we’ll reserve final judgement for an extended test drive across more varied conditions.

Thankfully there’s a fairly large 85L fuel tank, so if you can hit the claimed average you can get a theoretical 696km of range.

The Ram HD’s column shifter and foot-operated park brake say it all. This is a big, floaty and, at times, old-fashioned American truck, and that is certainly how it feels from behind the wheel.

2500 HD first.

From the initial burble of the forced-induction in-line six diesel, you can feel the torque simmering restlessly within. Slot the awkward selector into Drive, and – depending on how much heft you’re hauling – the Ram will lurch off the line like a startled bull, and before you know it, you’re bounding along.

If lightly laden, you’ll even momentarily spin the rear wheels in the lower ratios – second (the start-off gear; first’s for lugging only), third and maybe even fourth if the surface is slippery enough, though the traction controls will quell anything more than a bit of a bum wiggle.

From there on in, on a straight piece of highway anyway, the 3.7-tonne ute just strides along effortlessly, picking up the pace with ridiculous ease as required. You’re soon aware that the cruise control is vital if you’re going to keep your licence.

If you’re wondering how different the HD feels compared to the related regular Ram 1500, the first corner will serve up some answers soon enough.

The steering is light and reassuringly measured in response, but also numb and less precise than expected, if not quite vague, meaning you need to feed in inputs carefully. Especially at speed. Rushing it in, or blundering through a tighter turn carelessly, will have the laws of physics reminding you of this truck’s length and girth, and not to mention maybe the long arm of the law on your tail as well before long. Anyway, other road users will soon let you know as well. Take it easy.

Over the varied and at-times tight rural roads of Victoria’s Gippsland region, the endless pitter-patter of the unladen suspension, combined with the constant pitching from the body and trigger-happy brakes, resulted in motion queasiness, if not sickness. We’ve been assured that with a load as intended, everything including our internal sense of balance should settle down. Which makes sense. A boat or caravan out back should provide the anchoring effect required.

Back on straighter and smoother ground, where the 2500 smothers and smooshes most things before it, you’ll be glad for the commanding vision aided by the massive mirrors and surround-view cameras, helping to boost driver confidence, particularly when weaving through traffic or in parking scenarios.

But the compromises demanded for the ability to haul up to eight tonnes means this is a very niche proposition.

Which is why Ram insisted on us testing the sole 3500 HD with a 3.5-tonne caravan hitched out back, on the ex-Holden speed loop at Lang Lang.

This was a test of acceleration and control, and – again – we managed to spin the rear wheels in the lower gears.

Likewise, all that torque was delivered without struggle or strain, and almost immediately the 3500 was sitting steadily at 110km/h. The planted chassis and various electronics seamlessly kept everything in line.

But the track surface was too calm to assess the ride comfort from the leaf-sprung suspension, and we weren’t allowed to venture on to public roads.

Returning back to base, we even forgot all about the caravan quietly shadowing our every move out back, which is a sign of the 3500’s towering towing confidence.

Which is exactly what it says on the tin.

Obviously the RS Q8 Performance is all about speed, Audi made its intention clear by sending it to the Nurburgring to set a new SUV lap record for an SUV. But the reality is most owners are unlikely to hit the racetrack in the RS Q8, so what’s it like on the road?

In a word? Impressive.

While the engine is undoubtedly the star attraction offering up so much effortless performance, the RS Q8 Performance wouldn’t be so quick around the Nurburgring or as nice to drive on the road without its highly advanced chassis systems.

It has an array of technology to help it handle, it has active air suspension, adaptive dampers, active roll stabilisation and all-wheel steering, which help to make this big SUV handle like a much smaller car.

The suspension does a remarkable job of providing a compliant ride on such large alloy wheels, while also providing responsiveness.

The handling is certainly helped by the all-wheel steering, which gets the rear wheels to turn in the opposite direction to the fronts at low speed (below 50km/h), but in the same direction at high speed (above 80km/h), making the big SUV feels much more direct when changing direction.

As for the overall experience, that’s helped by Audi’s surprising decision to actually remove some of the sound insulation, which allows you to hear the engine even more than you ordinarily would. This really plays to the dynamic nature of the RS Q8 Performance.

The RS Q8 Performance comes stacked with the full suite of active safety features. These include adaptive cruise control, lane change warning, rear cross-traffic alert and surround-view cameras.

ANCAP rated the Q8 as five stars back when it first launched in 2019 and that rating is due to expire at the end of 2025. However, ANCAP states that it only applies to the 3.0-litre Q8 models, not the V8-powered RS variants.

So, here's where the news may not be so good for potential HD buyers, because the Ram’s warranty is well below its main competitor.

Now it is the sole US full-sized ute with a three-year, 100,000km warranty, instead of the five-year/unlimited-kilometre coverage offered by the others.

And don’t forget, this is the era where (albeit smaller) utes from Kia have seven years while Mitsubishi, Nissan and MG are up to 10 years (conditionally).

Service intervals are at just six months or 12,000km and there are no capped-price servicing options either.

As a result of trailing the competition so badly in these key areas, the Ram HD’s overall rating has been dragged down significantly.

Along with the 75 Ram dealers throughout every state and territory in Australia, there are an additional three garages that will service the vehicles.

Despite the extra power and fancy new brakes, the RS Q8 Performance costs the same to service as the existing RS Q8.

That means $4690 for Audi’s five-year service plan, and $5720 for the Audi Advantage.

The latter package includes an extra two-year, unlimited kilometre warranty on top of Audi’s five year/unlimited km coverage. It also includes two extra services and two more years of roadside assistance, to keep you covered for seven years total.

That’s good, but it’s still an extra cost when many mainstream brands already offer seven years of coverage as standard.