Mercedes-Benz CLA35 vs Mercedes-Benz GLA35

What's the difference?

Is the Mercedes-AMG CLA 35 the perfect choice in the sleek sedan’s line-up?

Well, if you are after outright performance, then the answer still clearly lies with the CLA 45. But for those that just want a little more pep compared to the standard CLA range, the 35 is undoubtedly the one to get.

It’s not without its flaws, though, commanding a $15,000 price premium over the CLA 250 and a tougher-than-we’d-like ride, but if you value a more engaging drive and a brisk 0-100km/h time, the CLA 35 should definitely be on your shopping list.

Fast and small SUVs from Germany have arrived thick and fast over the last couple of years and of course Mercedes has to show off by having two, the GLA 45 will be along shortly.

A new addition to the GLA range, the GLA 35 is a welcome one, a step down from the brink of madness that will undoubtedly be the GLA 45 while putting itself into combat with the X2 M35i.

It's fast, fun and for a family, it's reasonably roomy, a sensible upgrade to an A 35. It's not cheap, but that doesn't ever seem to have stopped Mercedes buyers. I'm pretty sure the GLA 35 will be no exception.

From the front, the CLA 35 exterior oozes style and luxury.

Up front, the sleek and slender headlights emphasise the width of the fascia, while the large Mercedes logo sits proudly front and centre of the CLA’s nose.

There are subtle hints to the CLA 35’s sportiness too, with a slightly bulging bonnet and chiselled lower chin.

The grille is also unique on the 35, with a dual-horizontal slat design instead of the non-AMG CLA’s diamond pattern or the CLA 45’s Panamericana grille.

To my eye, the front of the CLA 35 is actually a bit too tame in styling for an AMG model. I prefer the in-your-face aggression of the CLA 45’s widened track and front grille, while the CLA 35 opts for more subtle styling cues. To each their own, though.

The silver paintwork of our test car probably doesn’t help, and if it was my choice I'd pick 'Sun Yellow' or 'Denim Blue' to stand out a bit more from the sea of black, grey and white German cars out there.

Move to the rear of the car though, and a large rear diffuser, big dual-exhaust outlets and a bootlid spoiler are much more befitting an AMG model.

Step inside the CLA and you will see it adopts the same dashboard design as all new-generation Mercedes vehicles built on the MFA2 platform, with the 'MBUX' dual-screen layout, large air-vents and central touchpad.

Our car was specced out with red-leather interior, which is a bit too loud for my tastes, but a two-tone black leather/titanium grey combo can also be had at no extra cost.

Sitting inside the CLA 35, you can tell it’s a modern car thanks to the clean layout of all the controls, while the screen-heavy dashboard definitely makes it feel tech-focused.

The new GLA's styling is much more obviously an SUV. One could say Mercedes was a bit timid first time around, but just about every car maker's first small SUV attempt was having a bet each way. Mercedes, however, really phoned it in, but got lucky because it worked. Put that down to the power of the three-pointed star. 

By the same token, it's not a wild departure from the theme set by the A-Class, but with thematic influences from the GLC. The AMG version now pick up the Panamericana grille and a more aero-aggressive front bumper, skirts and rear bumper, but does keep the tough unpainted wheel arch extensions. The AMG Night Package - which every other brand seems to call a black pack - adds a bit of menace.

Inside is almost indistinguishable from an A, which is a very good thing. The GLA ups the ante with the excellent, squared-off AMG steering wheel and a few extra buttons to choose the chassis and engine settings. The seats have lairy red inserts that might be a bait and switch to get the performance seats but that's the only mis-step in what is an otherwise excellent cabin.

Measuring 4695mm long, 1834mm wide, 1399mm tall and with a 2729mm wheelbase, the CLA 35 is definitely a sizeable sedan in the metal.

This actually makes the CLA 35 slightly longer and wider than a non-AMG C-Class sedan that measures 4686 and 1810mm respectively, but don’t expect the same level of practical interior space.

With a heavily sloped roofline, rear-seat comfort takes a hit. My 183cm (6.0ft) frame could not sit upright behind my driving position without tilting my head, while legroom was also slightly lacking.

With such large C-pillars and a small rear window, the second-row can actually feel a little claustrophobic for full-sized adults, but will seat children quite comfortably.

Second-row amenities include air-vents, two USB-C ports, back-of-seat storage nets, bottle holders in the doors, and two cupholders in the fold-down arm rest.

Just like at a music concert though, the best seats in the CLA 35 are up front, with plenty of room for heads, shoulders and legs.

The cabin is also much more light-filled up front, making for a more pleasant experience.

The front seats are electronically adjustable, as is the steering column, but the headrests are fixed.

Storage options include sizeable door bins, a centre console cubby, glove box, two cupholders and a wireless smartphone charger.

Boot space is 460 litres, but can expand with the rear split-fold 40/20/40 rear seats stowed.

Though the boot looks small and shallow on the outside, the aperture is actually quite large, and can easily accommodate a large suitcase with plenty of room to spare.

There are two key stats worth knowing, particularly if you're a current GLA owner wondering what the point of an upgrade might be. The MFA2 platform on which it rides has a longer wheelbase and wider track to liberate more room for people and stuff.

The rear seats are roomier than the old car and make for a more pleasant journey for taller folk, who also have more headroom than in the old car. While we're back here, you get bottle holders in the door but, crushingly, there is no armrest and no cupholders.

Things improve in the front with a pair of cupholders and a wireless charging pad that fits larger phones and a long, shallow bin under the armrest.

The boot holds an okay 435 litres (the Audi Q3, by comparison, has a massive 530 litres) seats up and 1430 litres seats down and has a nice flat loading lip to floor relationship, to go with the powered tailgate.

One of the reasons there is a 35 version of both the A and the GLA is that the 45 versions are so much more expensive than the 250 models that there was a gap you could drive...well, another spec level through.

That's not not to say the GLA 35 is cheap - starting at $82,935, you're still paying a hefty premium of $15,000 over the GLA 250 4Matic. Here in Australia, that buys you 20-inch alloys, a nine-speaker stereo, dual-zone climate control, reversing camera, keyless entry and start, front and rear parking sensors, active cruise control, electric front seats with heating, sat nav, auto LED headlights, leather seats and steering wheel, auto parking, power tailgate, auto wipers, panoramic sunroof and wireless phone charging.

The MBUX entertainment system is superb. While it does have wireless charging, you do have to connect via USB to get Apple CarPlay or Android Auto up on the second of the crisp 10.25-inch screens. The media screen works as both a touchscreen and you can run it from the pad on the centre console. And a number of the many buttons on the steering wheel.

You can get the signature AMG shell seats for $3290 (good if you're not, er, generously proportioned) as well as 21-inch wheels for $1990 which I think look far too big in the arches and quite possibly ruin what's left of the ride. You can also go all boy-racer with the Aerodynamics Package for $2990. Tick a few boxes and you can easily get the GLA 35 to the mid-$90k mark.

My car had the Communications Package which has three more speakers for a total of 12 and rather usefully, a head-up display, all for a stiff $2490.

Five of the GLA's colours cost $1490 (Cosmos Black, Denim Blue, Mountain Grey, Iridium Silver and Digital White), one is $1990 (Patagonia Red), not even white is free but at least it's only $500 while Night Black is the sole freebie.

Powered by a 2.0-litre, turbo-petrol four-cylinder engine, the CLA 35 punches out 225kW/400Nm.

Drive is sent through a seven-speed dual-clutch automatic transmissions to the road via Mercedes’ '4Matic' all-wheel-drive system, enabling a 0-100km/h sprint in the 1603kg sedan in just 4.7 seconds. Top speed is electronically limited to 250km/h.

Though I didn’t get a chance to test the latter, the former certainly feels accurate when taking off from a freeway on ramp, however, there is some hesitation from the turbo in getting on boost.

Peak power comes in at 5800rpm, while maximum torque is available from 3000-4000rpm.

Under the bonnet is a 2.0-litre four-cylinder turbo with 225kW at 5800rom and 400Nm between 3000 and 4000rpm. Merc engine-spotters will spot that it's not a hand-built  engine with Fritz or Heinz's signature on a little plate like the "proper" AMG engines do.

Called M260, it's the GLA250's basic setup with more cooling, a water to air chargecooler, its own air intake and a twin-scroll hotside turbo that spins up nice quickly given its proximity to the exhaust header.

There is also an AMG exhaust with a flap you can open at startup by pulling one of the gearshift paddles for what Mercedes calls an Emotive startup - one imagines this will inspire some emotive language from your neighbours if you fire up at 6am. The paddles operate an eight-speed twin-clutch transmission driving an AMG-calibrated all-wheel drive system that can send 100 per cent of power to the front wheels and a maximum fifty per cent to the rear. An off-road mode locks the torque split to 50:50 if you're keen to take this thing into the loose stuff on shiny 20-inch wheels and sporty road tyres.

Mercedes claims you'll crack the run to 100km/h in 5.2 seconds. Yikes.

Officially, the CLA 35 sips 7.5 litres per 100km on the combined cycle, but we managed a 9.9L/100km figure in our week with the car.

The majority of our driving was done in inner-city environments, with the two trips down the freeway to seek out twisty country rounds.

Minimum fuel grade in the CLA 35 is 98 RON.

The GLA carries an official combined cycle figure of 8.0L/100km. Over a reasonably wet weekend and a motorway-heavy run down the coast from Sydney along with some suburban running, I got an indicated 11.3L/100km. I thought that was alright given I liked hearing the exhaust pop on the upshift and I wasn't messing about in the corners. I'd go so far as to say you could get quite close to the official figure if you were paying attention.

The CLA 35 might not offer the outright thrills or breadth of capability of the CLA 45, but don’t think the cut-price AMG offers up a cut-rate driving experience.

From the driver’s seat, one of the cool things about the CLA 35 is that it doesn’t actually look any different from its more expensive sibling.

The drive-mode selector that is now embedded on the steering wheel is fantastic, a feature first seen on the Mercedes-AMG GT 4-door, and makes changing the driving dynamics on the fly an absolute breeze.

In fact, we think all cars where you can select drive modes should have a selector on the steering wheel like this, which lets you quickly and easily dial it up or down while keeping your hands on the wheel.

'Comfort', 'Sport', 'Sport+' and 'Individual' modes are available, while the transmission can also be put into manual mode independently for those that prefer to use the flappy paddles.

Suspension settings can also be tweaked regardless of which drive mode you are in, and it’s this level of customisability that we appreciate.

You want loud exhaust pops and the engine in full attack with manual shifting and the softest suspension? Sure, that’s doable here in the CLA 35. And toning it down to its most comfortable settings is just a flick of the wrist away.

The steering feels a little numb on centre and at slower speeds, though feedback picks right up with speed and is communicative enough when the road starts to get twisty.

Fitted with wide and sticky Michelin rubber, as well as the aforementioned all-wheel drive system, the CLA 35 is certainly not lacking in grip.

The suspension does an okay job of absorbing bumps, but uneven surfaces, like Melbourne’s tram tracks, can send uncomfortable jolts into the cabin if travelling quickly.

In fact, we think the ride comfort of the CLA 35 is probably its weakest aspect, offering not enough variability in its Comfort and Sport settings, and instead settling somewhere in between, regardless of drive mode.

The CLA 35 is ultimately still a fun and engaging sports sedan, though there are some sacrifices made to get it there.

Unusually for an AMG, the engine does not completely dominate the GLA 35 experience. That's clearly by design - this car is meant for the everyday. While it is hugely powerful for this kind of car, it's a friendly engine that's ready to punch you in the kidneys when you want it, but bumbles around happily when you're in Comfort mode. Which is a pretty good mode.

Moving to Sport amps up the engine but not the suspension, at least not too much. It's at this point you suspect that the 20-inch wheels may not be the right choice for the GLA 35 as the suspension starts to fidget on anything but the smoothest of surfaces. Moving on to Sport+ and unless you're really getting stuck in, it's fidgety and thumpy. One neat trick is that you can avoid all that with the I (individual) setting. Like the C 63, there's a dial for the drive select. But to make life easier for you, you can set up the I setting to your liking, meaning you can keep the suspension in Comfort or Sport mode while turning everything else up to Sport+.

The big sticky Continental tyres are terrific but they're surprisingly noisy. That's kind of the price of entry for a sporty German car, but you do have to raise your voice over the rumble on most surfaces over about 60km/h. The flipside is that you've got a ton of grip, wet or dry in the GLA 35. The throttle reacts quickly to your inputs with the power coming on quickly, the gearbox shifting smoothly (or firmly, if you ask it to). The paddles are very useful and when you're braking into a corner, you can hold the paddle and it will find the lowest practical gear. Nifty.

The brakes are four-piston calipers up front gripping huge 350mm brakes, the rears are single piston but still big discs at 320mm.

Steering is typically AMG, with a strong turn-in to corners and with enough feel to let you know what's happening under the tyres. It's never too chatty, so it's not a tiring car.

On the highway it does settle somewhat and the tyre noise calms down. The suspension keeps you comfortable in comfort mode and the engine is barely noticeable.

The GLA 35 comes loaded up with eight airbags, ABS, stability and traction controls, blind spot monitoring, forward AEB (low and high speed), forward collision warning, reversing camera, auto high beam, lane keep assist, road sign recognition and reverse cross-traffic alert.

You can add front cross traffic alert and active cruise with the $1990 Driving Assistance Package.

You also get two ISOFIX and three top-tether points across the back seat for child and baby seats.

The current GLA has not yet been EuroNCAP or ANCAP tested but I would be staggered if it didn't breeze through with a five star rating.

As with all new Mercedes-Benz models, the CLA 35 comes with a five-year/unlimited kilometre warranty, which is one of the best assurance periods offered by a premium carmaker.

It also comes with five years of roadside assist.

Scheduled service intervals are every 25,000km or 12 months, whichever comes first.

A three-year service plan is available for $2150 for new CLA 35 buyers, saving $500 when priced individually.

Four- and five-year plans are also available, and are priced at $4200 and $4950 respectively.

Mercedes has upped the ante on its German rivals by offering a five year/unlimited kilometre warranty.

Service intervals are an impressive 12 months/25,000km. Under the capped-price servicing regime that runs for three years, you'll pay $2650 or an average of $883 per service. The third service is the killer, at $1250.

If you pre-pay your servicing, you can save $500 with a three-year plan for $2150. A five year plan is $3500.