Holden Trax vs Mercedes-Benz C350 E

What's the difference?

The Holden Trax looks nice enough and is pleasant enough to live with day to day. Like many others of its ilk, the Trax may be marketed as an SUV but that catch-call moniker, which has come to be accepted to mean that a vehicle is actually sporty and off-road capable, is misleading.

As an adventure vehicle the Trax falls well short – it needs a diesel engine and much improved capability (AWD) and space – but as a lively daily driver for a young starter, or a one-child family, then it’s perfectly adequate.

If you’ve got your heart set on a Trax and you’re patient, perhaps you’ll wait until 2020 when the next-generation Trax is due here.

Plug-in hybrids will probably not appeal to all buyers, but in the premium space they make sense.

Smooth electric driving paired with the potential for weekend trips outside the 100km-or-so range make the C350e a decent thing, let alone its price parity with the C300.

It still doesn’t top the charts for value or practicality, but even aside from the PHEV tech, the C350e remains a fun-to-drive sedan that holds its own in the executive space.

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

It’s a small SUV and it looks sporty and outdoorsy enough in a generic sort of way. A nuggety stance, short-wheelbase and roof rails add to this Trax’s activity-friendly demeanour, without promising too much. Take a look and make up your own mind if it’s your cup of tea; I’m not your life coach so decide for yourself whether it’s cool or plain.

The C350e doesn’t depart massively from the familiar visual formula that is the current ‘206’ generation C-Class and that’s no bad thing.

Call it conservative if you like, but having seen what’s possible when Mercedes takes risks (hello EQ models), the traditional Mercedes design language is put into healthy perspective. 

Handsome proportions and lines without any fuss - there are no unnecessary creases or panels or materials.

The plug-in C350e comes, as mentioned, with the AMG Line pack, adding 18-inch five-spoke AMG wheels, an AMG front apron, grille insert, and of course EQ Hybrid badging.

The pack also includes AMG Line styling inside, where you’d have to be a Mercedes regular to spot the specifics. The AMG-style steering wheel and seats are the biggest giveaways.

Its interior is plain, but practical. The LS has cloth trim and expanses of plastic, which make it a bit ordinary to look at but very easy to live with in the real world because day-to-day life involves liquid spills, crumbs and dirt – lots of dirt.

Storage spaces include a narrow glovebox, narrow plastic door pockets, four cupholders in centre console (no lidded bin here) plus two in the rear centre armrest, and driver and front passenger seat-back pockets.

The rear cargo area is a 356-litre space with the rear seats in use and the cargo cover in place), or a 785-litre space with the 60/40 rear seats folded into the floor. For this to happen, the rear-seat bases flip forward into a vertical position and the seat-backs fold forward to make the ‘new’ flat floor.

The space inside the C-Class remains straight-forward as ever. The layout and features don’t stray from convention, meaning there’s a sizable central screen, digital driver display, central cupholders, and places to put things like a phone, with wireless charging included.

The electrically adjustable seat and steering column make getting into a comfortable position easy, and the memory settings keep it that way.

While physical buttons are scarce, the key controls are easy to access via the central multimedia touchscreen and there’s a lack of complicated sub-menus. It's a refreshingly straightforward system compared to some from rivals, especially that of former category benchmark BMW.

There are fewer than a dozen main tile buttons on the menu, and they’re clear and easy to work out. The main screen also defaults to the navigation, and the climate controls are always visible on the touchscreen.

The central storage area is laid out so a phone sitting in the charging pad is slightly hidden, meaning it’s not a distraction, plus the cover means the cupholders and storage can be hidden away. Tidy!

The AMG-style steering wheel’s haptic controls can be used as regular buttons, but more than once on the test drive I nudged the volume and turned my music back on, just a minor annoyance.

In the second row, there’s generous space for a mid-size sedan, and the seats are comfortable for an adult to ride along for a lengthy trip.

There’s a centre armrest, hidden cupholders, and a generally light and open feeling thanks to the panoramic sunroof.

The battery for the hybrid system sits under the second row seats, which means there’s no uneven flooring in the 315L boot.

The Mercedes-Benz C350e kicks off from $98,200, that’s before options and on-road costs.

And there are some key options, the main one being the ability to DC fast-charge which costs $1500 and brings the total to $99,700.

Pricing sits par with the C300 non-PHEV because of its similar specification, and Mercedes Australia said it wanted to give buyers the choice of internal combustion engine (ICE) or PHEV without having to consider the costs.

There’s a decent stack of standard kit in the C350e, including power adjustable heated leather seats, a 12.3-inch multimedia touchscreen and same-size digital driver display, head-up display, and wireless Android Auto and Apple CarPlay.

The C350e also scores some more fun stuff as standard, including a Burmester surround sound system, panoramic sunroof, the Driving Assist Plus pack, augmented reality MBUX, and the AMG Line pack which adds some sportier-looking design features.

It also comes with Mercedes’ Comfort Suspension which includes self-levelling suspension, and Digital Lights with adaptive high beam.

Our test vehicle has the 1.4-litre DOHC 16-valve four-cylinder iTi petrol engine – producing 103kW at 3000rpm and 200Nm at 1850rpm – matched to a six-speed automatic transmission.

The turbo gives the Trax a welcome kick in the automotive pants, making the turbo-equipped variant the pick of the bunch.

The C350e’s plug-in hybrid drivetrain consists of a 2.0-litre turbo-petrol four-cylinder engine and an electric motor that drives the rear wheels via a nine-speed automatic transmission.

The combustion engine’s peak outputs are 150kW and 320Nm, while the 95kW/440Nm electric motor works with it to land on a total system output of 230kW and 550Nm.

While it’s not lightning quick, the C350e has a decent claimed 0-100km/h sprint of 6.1 seconds, and from the driver’s seat it certainly feels brisk enough to get out of its own way.

This Trax has a claimed fuel consumption of 6.7L/100km (combined). We clocked up more than 300km of highway and back-roads driving, with a smattering of gravel-road driving thrown in. We recorded 10.7L/100km, which is much thirstier than claimed. 

Mercedes officially claims the C350e has a driving range of 104km under NEDC testing, with a 25.4kWh battery supplying the juice.

Official fuel use is just 1.5L/100km, but Mercedes says that becomes 7.6L without any battery charge to help it out.

Under standard 11kW AC charging, it’s about two hours from flat to full, but with the optional 55kW DC fast-charging, it takes about 20 minutes from flat to 80 per cent.

Driving position is high, steering is quite sharp and handling is tight and controlled, so there’s plenty of welcome driver involvement from the get-go. 

The turbocharged engine makes for a lively and responsive drive and, combined well with the six-speed auto, this 1376kg Trax offers up plenty of zip from stop-starts and oodles of oomph for smooth overtaking.

Ride is very firm, bordering on harsh, with rear-seat passengers* especially feeling the lumps and bumps of irregular road surfaces by way of the tight suspension. (*I believe my children.) 

Interior space is not an issue though as everyone can manage head and shoulders nicely in the tall cabin. The seats are lacking in full support though, making long trips not such an appealing proposition, and in-cabin noise builds early and becomes quite hard on your ears.

The C350e has a few drive modes that are mostly self-explanatory, those being Battery Hold, Electric, Hybrid, Sport and Individual.

You’ll likely find yourself using Electric and Hybrid most of the time, so we’ll focus on those. Sport is fine but somewhat defeats the purpose of the plug-in system for day-to-day driving.

In electric mode, the C350e doesn’t feel like it’s lacking any power without the engine helping it along. Acceleration is smooth, brisk enough, and a 130km/h top speed means you won’t need the engine on your commute.

Realistically, its 104km range is probably somewhere closer to 80km, but covers you for a decent daily distance.

Let the car use the engine to help out via Hybrid mode and, if you’ve got music playing, you might not notice the engine starting and cutting. The system is smooth and it means a much longer life out of the battery before needing to charge. That, and there’s the benefit of more brisk acceleration thanks to the hefty 230kW/550Nm total outputs.

Everything else about the C350e is classic C-Class - the ride is controlled and the suspension does a decent job of soaking up bumps and rough roads, the comfort and self-levelling suspension makes cornering smooth and inspires confidence.

The most noticeable shortcoming for the car is its transmission hesitation if you put your foot down quickly, though the ability to use the paddles to choose your own gears in Sport mode avoids this.

In Electric or Hybrid, the paddles decide how much braking regen to apply, a useful feature that lets you recuperate some power for the battery if your drive includes a lot of downhill slopes or if you’re avoiding relying on the brake pedal.

The C530e’s extra weight doesn’t dull its driving characteristics as you might expect from a car laden with PHEV tech, so it’s a welcome surprise that you could pick up a plush plug-in for the same price as a combustion C300.

The C-Class has a five-star ANCAP rating, but it was tested in 2022 before the plug-in variant arrived.

Still, 10 airbags and an advanced list of safety features provides peace of mind.

The C-Class benefits from the brand’s Pre-Safe collision protection system to minimise occupant injuries from an impact, even to your hearing.

It also has emergency collision avoidance via steering input, driver monitoring, speed limit assist with adaptive cruise control, and parking sensors with surround-view cameras.

The Trax has a five-year/unlimited-kilometre warranty and service intervals are recommended at 15,000km/nine months.

Mercedes has a five-year, unlimited kilometre warranty which is decent for a premium brand.

Servicing is pricey, though. 

A three-year pack covering a service every 12 months (or 25,000km, whichever comes first) costs $3355, that being just three services.

Four years costs $4630, or five includes a more expensive service and brings the total to $6890. That’s an average of $1378 per service.

Finding somewhere to spend that money shouldn’t be hard as there are 100 dealers listed in Australia.