Mercedes-Benz C350 vs Mercedes-Benz X350

What's the difference?

Baby steps these might be, but they're important ones for Benz. The new in-cabin tech and clever engine in the cheapest models only strengthen the C-Class proposition, without taking anything away from the drive experience, cabin ambiance and utterly sublime ride.

In short, Mercedes' reign at the top of the premium mid-size segment is unlikely to be toppled anytime soon.

The V6 X-Class is nice enough to drive on-road and it’s effective enough off-road, but it’s let down by its less-than-impressive interior and those elements combined certainly do not justify such a high price-tag.

Sure, its safety gear is top-notch but the X-Class, even in this V6 guise, feels like a lacklustre attempt at ute greatness, rather than a real effort. 

Right now, if you’re in the market for a super-comfortable and capable V6 ute with real class and German precision, check out a top-spec V6 Amarok – and save about $25,000 while you’re at it.

Perhaps not quite blink and you’ll miss them, but we're not talking radical changes either, folks. Benz tells us as much as 50 per cent of the C-Class components are new or changed, but it has clearly subscribed to the 'if it ain’t broke' philosophy in the design department.

Yes, there are new bumpers front and rear, new LED light configurations and new colours and wheel designs, but we’re not talking huge changes outside. Still, the C-Class cuts a fine figure on the road, what with its intricate alloys, bonnet-defining grille and simple, understated body contours. Australia will take every available body style, too, including sedan, coupe, cabriolet and - our personal favourite - the 'estate' station wagon.

The C 43 AMG now gets the twin-blade grille design used on the V8-powered models, as well as a two pairs of rounded exhaust tips at the rear.

Inside, though, the changes are more substantial. For one, the new-generation Mercedes Touch Control steering wheel arrives as standard, as does a new and very effective 12.3-inch screen that replaces the traditional dials in the instrument cluster (standard on every model). 

The cabin remains a peaceful and premium-feeling space, with a fine use of materials (including quilted leather on the door panels, polished silver or faux-wood for the centre console and leather for the steering wheel), and Benz deserves credit for ensuring that sense of luxury extends to backseat riders. 

From the outside, the X-Class looks pretty impressive – it’s chunky and blocky and has a real tough-truck presence.

As mentioned, a fair few of the cool exterior touches are actually paid-for options, and our tester was loaded with these extras and, as a result, looked like a work-or-play ready luxury workhorse.

So, it looks pretty good but, as always, looks can be deceiving and the interior is a very different story.

It all depends, really. All C-Class variants sit on the same 2840mm wheelbase, and stretch 1810mm in width. The sedan, coupe and cabriolet versions measure 4686mm in length, while the Estate’s bigger cargo area increases its size to 4702mm.

Predictably, then, the estate offers the most useable (VDA) boot space, with 490 litres with the rear seats in place, swelling to 1510 litres with the rear seats folded flat. The sedan version is next on the cargo-carrying list, with 455 litres, followed by the 380 litres of the coupe and 285 litres of the cabriolet.

We spent our entire time in the four-door sedan models, and we can report a spacious and comfortable space for driver and passenger (you could play ping pong on the wide centre console) with two cupholders and room in each of the front doors for bottles. There’s all the USB and power connections you might need (most housed in a deep storage bin that separates the front seats) and the more expensive models offer wireless charging for compatible phones, too.

Climb into the sedan’s back seat, and you’ll find impressive legroom (behind my own 176cm driving position), but headroom - especially in sunroof-equipped cars - feels a little tighter. The rear seat is actually wide enough to fit three adults at a pinch, but the tall and bulky tunnel absolutely obliterates leg room for the middle-seat rider.

There are two cupholders in the pulldown divider that separates the backseat, as well two ISOFIX attachment points. Rear occupants also get there own air vents, as well as a 12-volt power source.

I’m not a snob about interiors but if I spent almost $90 grand on a ute I’d expect it to have a very high level of fit and finish inside, plenty of storage options and an overall premium feeling inside.

That’s sorely lacking in here.

From the many hard-plastic surfaces, fake leather, brushed-aluminium sections and sort of half-hearted attempts at three-pointed star styling – such as the vents – no part of the interior looks or feels anything like the premium quality you’d expect to find in a Mercedes-Benz.

As for equipment inside, you get the 7.0-inch floating touchscreen and a few other bits and pieces but there are some glaring omissions: you don’t get a reach-adjustable steering wheel, heated seats, or real leather (our tester has the optional black leather seats fitted at a cost of $1750), you don’t get much in the way of storage anywhere, and you don’t get Apple CarPlay or Android Auto – you don’t even get a driver-side grab handle. All of those sort of mod cons, you get in a ute that costs much less than this X-Class. 

Room and comfort inside is adequate but a long way from unreal for something so pricey.

Driving position is nice, with plenty of vision all-round, but everyone's seats could do with a bit more cushioning and length in the base.

In the grand tradition of all utes, the rear seat is really the realm of young children and, at a stretch, smaller adults, especially for longer trips in the saddle. 

Storage is minimal in the back seat – you don’t even get a drop-down arm-rest with cup-holder.

The 350d Power ($79,415 plus on-road costs*) is the top-spec variant in a two-variant V6 X-Class range; the other variant is the Progressive, which starts from $73,270 plus on-road costs.

Our tester has a 3.0-litre six-cylinder diesel engine a seven-speed automatic transmission and permanent all-wheel drive system – all from Benz. All of those certainly make a refreshing change from the Navara-based four-cylinder model that preceded this X-Class. (Price as tested is $88,618, including GST plus on-roads.)

Standard gear includes steering-wheel paddle shifters, 19-inch alloy wheels (our tester had the optional 18-inch rim design, part of the $1990 Style Pack), body-coloured exterior parts with chrome accents, fog-lamps, dusk-sensing LED High Performance headlamps, ARTICO/DINAMICA seat upholstery, ARTICO dash and door sill covering with contrast stitching, Electric front seats with lumbar support, front foot-well, vanity and door illumination lamps, dashboard trim in aluminium and black roof liner and more.

Safety gear includes seven airbags, AEB, tyre-pressure-monitoring system, Active Lane Keeping Assist, Hill Start Assist, 360 degree surround-view camera, i-Size child seat anchorages and more.

The roof rails and side steps add to the X-Class’s commanding appearance, but those are part of the optional $1990 Style Pack, they are not standard.

The silver styling bar ($1551) and the tray liner ($899) also look cool– but they’re optional extras.

It’s here where the C-Class is at its most updated, serving up a new turbocharged 1.5-litre hybrid engine in the entry-level C200. Alone, it’s good for 135kW/280Nm, but it’s combined with a clever 48-volt system that adds up to 11kW of bonus power low in the rev range, happily plugging the power void usually left by turbo lag when taking off, or if you plant your foot when overtaking.

The C300 is powered by a more conventional 2.0-litre, four-cylinder good for 190kW/370Nm, while the sole diesel (in the C220d) is a four-cylinder unit that produces 143kW/400Nm. All are paired with a nine-speed automatic transmission.

The C 43 4Matic's engine remains a fabulous thing, only now tweaked for a little bit more power. It's good for 287kW/520Nm, and is paired with a nine-speed transmission that sends the power to all four wheels, albeit with a bias toward the rear tyres.

The V6 350d Power V6 has a Benz-built 3.0-litre diesel engine (190kW at 3400rpm and 550Nm at 1400rpm-3200rpm), matched to a Benz-built seven-speed auto. It’s a mostly smooth combination and any perceived throttle or turbo lag can be swiftly overcome through switching to one of the more sporty of the five driving modes – one of which is actually called Sport – and making judicious use of the steering-wheel-mounted paddle shifters. The other driving modes are Comfort, Eco, Manual and Off Road and all are designed to adjust throttle input, gear changes and shift times to suit the terrain.

This X-Class has Benz’s 4Matic full-time 4WD system with 4MAT (40:60 torque split for daily driving), 4H (the X-Class’s high range, with 30:70 torque split for looser surfaces) and 4L (aka low range with a 50:50 torque split to suit low-speed 4WDing). The driver uses a simple dial – unfortunately tucked away low down, almost hidden, on the centre console – to switch between these modes.

Let’s start with the C200, where the addition of the clever hybrid system has helped drop fuel use to a claimed 6.0-6.3 litres per hundred kilometres. The old car delivered 6.5 per hundred, but was slightly quicker from 0-100km/h (7.2sec- 7.7sec). 

The C300 will sip a claimed 6.5-6.9L/100km on the same cycle, while the diesel requires a miserly 4.7 litres. The C 43 is the thirstiest, of course, needing 9.1-9.3L/100km on the same cycle. 

The C200 makes do with a 41-litre tank (as does the diesel) while the C300 steps that up to a 66-litre tank. And all those numbers related to the sedan body shape, so expect some slight variations if you’re shopping for a coupe cabriolet or estate.

Fuel consumption is listed as 8.8L/100km (combined). 

We recorded 10.9L/100km on test and that included plenty of low-speed 4WDing. 

The V6 X-Class has a 80-litre fuel tank. 

Keen to sample the new hybrid tech in the C200, we made a beeline for the cheapest C-Class. And if you’d told me, even a handful of years ago, that a piddly 1.5-litre engine would be enough to drag the 1555kg Benz around, I’d have labelled you crazier than Donald Trump's Twitter account. 

The C200’s system is a unique hybrid set-up, in the sense that it only delivers extra power in the tiniest of circumstances, but they’re the areas that it really needs it. From a standstill, the electric motor delivers its extra 11kW of oomph at just the right moment need to help get you moving (the same when overtaking) and it does genuinely make a difference. 

It can’t completely overrule the concrete laws of physics, though. Plant your foot on anything that even looks like a hill and you can definitely hear that 1.5-litre engine working hard - interrupting the ambience of the cabin - but keep it in the sweet-spot of the rev range and it’s a quiet, capable-feeling engine that delivers more punch than its size might suggest.

On Germany’s epic autobahns, the needle even sailed past 215km/h without too much encouragement (even if I could have knitted a sweater in time it took to to close the last 10-or-so-kilometres). Is that relevant for Australia? Sadly not, but it does suggest the engine is more capable than we will ever need it to be.

Elsewhere, the not-too-different C-Class rides an absolute dream, smooth-sailing over bumps and road imperfections, and the cabin is serene and comfortable - though there was more wind noise at times than I was expecting.

Downsides? Well, the cheapest C-Class doesn’t feel the most dynamic offering, with the light steering serving up a slight disconnect between the steering wheel and the road below in its most comfortable settings. Switching to Sport improves matters, but if you’re life is mostly city and suburbs, it will matter little.

The nine-speed transmission can behave oddly at times, too; smooth and lightning fast as it climbs the gears, and mostly perfect on the way back down. But I noticed a definite thump occasionally as it shifted down from second to first gear, which stripped a little refinement from the drive experience.

It's more noticeable in the C 43 4Matic AMG, but it's vastly overshadowed by the thick and meaty power delivery from that stonking turbocharged engine. It's a rocket, and while it's not as fast or as loud as its C 63 big brother, I honestly think the tweaked C 43 is all the AMG I'd ever need.

Well, this is where the news gets a little bit better.

The V6 is a much better fit for the X-Class than the four-cylinder and it works well with the seven-speed auto, punching the more-than-2190kg ute along – although there is, at times, a substantial delay between foot down and go-time but, as mentioned earlier, that can be overcome by switching to Sport and using the paddle shifters.

It does sit nicely on the road, and ride and handling are generally okay with the X-Class only infrequently revealing some of the skips and jitters you’d expect of an unladen ute.

The coil-spring suspension tends to yield a spongy, comfortable ride rather than the too-firm ride of a ute, especially those of the leaf-spring variety, with nothing onboard.

Steering is pretty sharp and, despite its bulk, the X-Class is reasonably easy to manoeuvre for its size on- and off-road. It has a 12.8m turning circle.

A big plus in the X-Class’s favour is its class-leading suite of active safety tech including AEB, lane keeping assist, as well as that 360-degree view camera and more.

It has seven airbags, and a five-star ANCAP rating.

While specific maintenance pricing is yet to be confirmed, each of these models is covered by three-year warranty, with service intervals pegged at 25,000km or 12 months.

A three-year/200,00km warranty applies to this ute. Service intervals are up to one year/20,000km.