Mercedes-Benz A250 vs Mercedes-Benz CLA250

What's the difference?

The A 250 e is a really interesting option in an evolving electrified landscape.

Not only is it a demonstration Mercedes is going to have a real go at plug-in hybrid cars in Australia, it also offers those who may be curious about an electrified vehicle a way of experiencing it on their terms.

The compromises are clear-cut, though. You can drive the A 250 e in any way you're comfortable with, but it's never going to be quite as good as a purpose-built EV, hybrid, or combustion car.

The Mercedes-AMG CLA 45 S is more glorious madness from the hot-rodders in Affalterbach. A design and engineering master-class putting a slightly more mature spin on the fast and furious small AMG formula. But only slightly. It's brilliantly outrageous.

Similar to its GLC 300 e bigger sibling, you'd be hard-pressed to tell the A 250 e is a PHEV at all. There's very little about it which screams ‘eco' until you look a little closer. Only keen Mercedes enthusiasts will pick the eco-look wheels, with the only other two give aways being the lack of an exhaust and fuel flaps on both sides.

Other than those items, the A 250 e's exterior is the normal A-Class fare of slick but conservative Mercedes styling, gently accented with elements of chrome and black.

Inside is the same deal. It has all the same elements which make Mercedes' small car range unique and flashy to be behind the wheel of.

Our car had a controversial contrasting crème interior, but I have to say I much prefer the piano black trim items to the in-your-face chrome ones which usually come in these Benz small cars.

Obviously, there's a healthy options list to help you customise it further, but I'm a fan of the soft dash elements, and how the ‘Artico' trim is generously placed throughout to remind you this is a premium badged car.

I do like how Mercedes stands out from the crowd when it comes to its signature vent layout, dual-screens and everything from the lavish front seats to the wheel.

I especially like the blue colour our hatch came in, as you usually only see Benz cars in white, grey, silver, or black. Buy colours!

The 'MBUX' multimedia suite is also lightening fast and very customisable when it comes to its layout and look. I'd say its one of the best suites on the market, although interacting with it via the touch elements on the wheel and centre pad can be a bit fiddly.

Claimed to blaze from 0-100km/h in 4.0 seconds the second-generation CLA 45 has the performance credentials of a mid-engine supercar, wrapped in a relatively unassuming three-box body. And while it might look mild-mannered from a distance, this devil's differences are in the detail.

Like it's A 45 sibling the CLA 45 S features AMG's now signature Panamericana grille with 12 vertical louvres, a winged front spoiler treatment, extra aero bits around the front air intakes and 'Power Dome' bumps in the bonnet.

The side skirts are wider, and the 19-inch twin five-spoke rims are standard. While at the back the diffuser treatment is more pronounced than the hatch, but the fat 90mm exhaust pipes are the same, and the lip spoiler is on the boot lid rather than the roof.

The interior is virtually identical to the hatch, the biggest difference being the four-door coupe's frameless doors.

A combination of Merc's 'Artico' faux leather and 'Dinamica'  microfibre trim is accented with racy yellow highlights, with a nappa leather and Dinamica AMG Performance wheel and sports pedals completing the picture.

And the twin widescreen MBUX instrument and media display boasts AMG-specific read-outs on everything from gear selection, warm-up menu, car set-up, a G-metre, race timer and engine data. The standard 'Track Pack' even includes specific circuit layouts and data.

Like all A-Class hatchbacks, this Benz is centred pretty much solely around the front two passengers. Both get lavish seat trims and lovely touchpoints, easily a cut above mass market rivals. 

Space perhaps isn't this car's forte, with the A- and B-pillars cascading inwards for a low roofline and a comfortable but not spacious interior width. 

Raised console elements and elbow resting points add to the primo feel, but visibility is limited from the tiny wing mirrors and small rear window.

Front passengers get some large binnacles in the door trims, cupholders in the front, a decently sized centre console box housing two USB ports, a surprisingly large glove box, and a shallow bay for wireless phone charging up front.

All three USB ports available to front passengers are USB-C type so you'll also need to be ready with some adapters.

Rear passengers get the same lovely sculpted seat trims, but it is limited back there for someone my 182cm (6'0") height and the large front passenger seats, low roofline, and smallish window apertures make for a tight-feeling space. 

There are nettings on the back of the front seats, small binnacles in the doors and a tiny shelf on the back of the centre console.

There are no amenities like adjustable air vents or charging ports for rear passengers, although the two USB-C jacks located in the centre console box should be within reach.

Boot space is an interesting story. Mercedes has packaged the electric elements in this car to consume the least amount of space possible. So, despite a relatively large and water-cooed lithium-ion battery under the boot floor, and 35-litre fuel tank in front of the rear axle, the hatchback as tested here only loses 45-litres compared to its non-hybrid version. No mean feat.

This makes total space available a decent 310 litres (VDA). You'll get a little more in the sedan version of this car, and it is larger than the Audi A3 40 TFSI e which offers 280L.

At just under 4.7m long (248mm longer than the A 45 S hatch), a bit under 1.9m wide, and fraction over 1.4m tall the A 45 S in the dimensional bullseye for a compact four-door.

The CLA A 45 S driver is presented with the same sleek 'MBUX' widescreen display found in the Mercedes-Benz A-Class, and storage runs to two cupholders in the centre console, a lidded bin/armrest between the seats (including twin USB ports), decent door pockets with room for bottles and a medium-size glove box.

In a swap to the rear, sitting behind the driver's seat set to my (183cm) position, I enjoyed adequate knee and foot room, although headroom isn't as generous.

A centre fold-down armrest incorporates two cupholders, again there are generous pockets in the doors with room for bottles, and adjustable ventilation outlets are set into the back of the front centre console is a welcome inclusion. No map pockets on the racy, hard shell sports front seats, though.

There are three belted positions across the rear, but the adults using them for anything other than short journeys will have to be good friends and flexible. Best for two grown-ups, and three kids will be fine.

Boot volume is a healthy 460 litres (VDA), expanding further with the 40/20/40 split-folding rear seat down. There are tie-down hooks, a 12-volt outlet and elasticised storage pockets either side of the load space to further enhance useability. But beware, the Merc-AMG CLA 45 S is a no-tow zone.

The new CLA 45 is launching in the premium S variant only (a 'base' non-S version is offered in other markets). The outgoing model was tagged at $93,800, before on-road costs, prior to its discontinuation in January this year, and Mercedes-Benz Australia has hinted strongly that a price increase is likely. So, expect a list price in the mid-$90k range.

We'll cover active and passive safety tech in the safety section, and although final Australian specification is yet to be confirmed you can expect the stand ard features list to include the 19-inch alloys, 'Artico' faux leather and 'Dinamica' microfibre trim upholstery, the 'MBUX' widescreen cockpit display (two 10.25-inch digital screens) and 'MercedesMe' voice recognition, heated and electrically-adjustable sports front seats, auto adaptive LED headlights, LED tail-lights and DRLs, keyless entry and start, auto-dimming rear-view mirror, dual-zone climate-control, sat-nav, multi-function sports steering wheel, active cruise control, rain-sensing wipers, Active Parking Assist' (with ultrasonic proximity sensors front and rear), rear privacy glass, plus premium audio with digital radio, as well as Apple CarPlay and Android Auto.

This is where most of your money goes. Up front, the A 250 e gets a familiar 1.3-litre four-cylinder petrol engine, used elsewhere in Mercedes range.

This engine produces 118kW/250Nm and drives the front-wheels via an eight-speed dual-clutch automatic transmission.

This transmission also houses the electric motor, which is powerful for a hybrid this size, offering 75kW/300Nm for a healthy amount of cruising power without engine assistance.

These two combine for a massive output of 160kW/450Nm, with the electric motor and petrol engine working in tandem under heavy acceleration for a 0-100km/h sprint time of 6.6 seconds.

The A 250 e houses a 15.6kWh water-cooled lithium-ion battery under the boot floor to power said motor. This is, again, large for a hybrid this size, and grants an electric-only range of 73 kilometres (ADR) despite weighing in at just 150kg.

As the battery and fuel tank have moved in the way of where the exhaust port normally is, Mercedes has placed the entire exhaust system in the transmission tunnel which normally houses the 4Matic all-wheel drive system on the A 250 variant. Interesting stuff.

The A 45 S's all-new 2.0-litre (M139) engine is claimed to be the most powerful series production turbo four ever made, pumping out 310kW at 6750rpm and a monumental 500Nm, peaking between 5000-5250rpm. . That's up from an already impressive 280kW/470Nm on the out-going model.

It's an all-alloy, closed deck design fed by a combined direct and port fuel-injection system, with a single, twin-scroll turbo featuring low-friction roller bearings for quick spool up.

It's transversely mounted, but compared to the previous model has been spun 1 80-degrees on its vertical axis so the turbo's near the firewall and the intake system sits at the front to simplify and shorten ducting on the intake and exhaust sides.

The cylinder linings are treated with Merc's patented 'Nanoslide' coating, which delivers an ultra-hard, mirror-like surface for less friction and greater durability. And 'Camtronic' variable valve control sits on the exhaust side.

Drive goes to all four wheels via an eight-speed 'AMG Speedshift DCT 8G' dual-clutch auto, with manual shift paddles attached to the steering wheel.

All this jiggery-pokery makes for all sorts of very impressive fuel consumption numbers. This car's official one is just 1.6L/100km, although this is going to vary wildly by how you drive it (more on this in the driving section).

Fuel consumption is just one element of this car's drivetrain though. You'll also need to consider energy consumption which is officially rated at 14.8kWh/100km.

You can think of these two consumption elements as a sliding scale. The more you can use the electric motor and regeneration features, the lower your fuel consumption will be, conversely if you drive under primarily petrol or hybrid power, you'll be able to lower your energy consumption.

Read the driving section for more on how this particular car gives you unprecedented control over this.

We had the A 250 e for just three days and managed to cover roughly 250km, I was thoroughly testing each drive mode as much as possible, and my final consumption figures came out 6.9L/100km of fuel consumption, and 5.9Kwh/100km of energy consumption.

If I had more time to charge, it was evident these numbers would have been altered drastically. Hopefully we'll be able to bring you a longer and more comprehensive Urban Guide test of this vehicle in the future.

Somehow, there is still more to the story, with this Mercedes offering a fascinating option pack which makes it even more flexible when it comes to charging.

The DC charging pack comes in at $1490 and lets you charge not just at regular public Type 2 ports, but also at ultra-fast DC locations. It also doubles the amount of power this car can pull from public outlets or a wallbox.

Keep in mind this car only comes with a regular wall socket to Type2 charger. This means to make use of fast charging at home (up to 7.2kW) you'll need to add the Mercedes-Benz Wallbox ($1200 not including installation by JetCharge) and to make the most of it when you're out and about (or if you don't have a garage) you'll need the public (Type2 to Type2) charging cable ($565.16).

See below for Mercedes' estimate of charging time for each of the charging options.

The A 250 e has a 35-litre fuel tank and a thirst for mid-grade 95 RON unleaded petrol. Oh, and if it's emissions you're conscious of, the A 250 e officially emits just 34g/km of CO2, far lower than the roughly 140g/km industry targets.

Claimed fuel economy to the combined cycle NEDC (New European Driving Cycle) standard is 8.1L/100km, the engine emitting 186g/km of CO2 in the process. Figures for the Australian (ADR 81/02) standard will be issued at the time of the car's local launch in early 2020.

Stop-start is standard, minimum fuel requirement is 98 RON premium unleaded, and you'll need 51 litres of it to fill the tank.

Our combination of furious hot-lapping on the circuit and relatively enthusiastic open road driving on the launch program means we'll wait until we test the car on home soil to log a real world average.

The A 250 e is as interesting behind the wheel as it is on paper. To really explore it though, you'll need to delve into its complex drive modes.

It's more than just your usual comfort, eco, and sport. Each mode transforms the way you'll think about and drive this car.

The default is comfort, where the A 250 e behaves like you might expect from a plug-in. This means it will prefer to use electric drive unless you push the accelerator very hard. It makes for smooth and quiet motoring, although you'll find it chews through the electric range quite quickly, especially if you venture to the open road.

Sport mode prefers instead to primarily rely on the 1.3-litre four-cylinder engine. It's notably less refined, with this engine having a loud, gruff tone, and the introduction of vibrations and jerkiness from the dual-clutch automatic becomes immediately apparent.

It also firms up the steering, changes the transmission characteristics, and offers faster engine response from the accelerator pedal. As a side note, sport mode becomes a good tool for charging the battery quickly when you don't have access to a charging port.

The more interesting modes are electric, eco, and battery level. Battery level attempts to maintain the level the battery is currently at, while still using the car's hybrid features. This is so you can save the lion's share of charge for when it's most useful, like trawling in traffic.

Electric does what it says on the tin. Operates the car as an EV, not using its combustion engine at all. It also changes the car's paddle shifters from operating the transmission to altering the regenerative braking.

It offers modes varying from D+ which uses electric drive but coasts like a combustion car, to D-- which makes the car drive like a ‘single pedal' vehicle. This means it ups the regen braking to the point where the car will come to a full stop as you let your foot off the accelerator. It's the most efficient electric motoring mode.

Finally, eco mode lets you drive the A 250 e more like a conventional hybrid, limiting the electric motor to just taking off and cruising, preferring to switch to combustion more rapidly on acceleration.

While this car offers you unparalleled choice when it comes to electric motoring, it's worth noting it comes with its fair share of compromise.

This is far from the most refined car to drive in combustion mode, and it lacks the polish of, say, a Toyota hybrid when operating as a more traditional hybrid car.

I find it particularly interesting this car's best traits are found when it's operating as a purely electric vehicle. It's quieter, more refined, and the overpowered electric motor helps it feel just as good as a pure EV in terms of acceleration.

This car's downfalls as a combustion vehicle will be a real challenge for it. Again, it's a trade-off. The A 250 e doesn't feeel any heavier or more cumbersome than a 'normal' A-Class despite the extra battery size. But the ride is a bit harsh, and the dual-clutch leaves a lot to be desired in terms of refinement.

Asking more than $60 grand still seems tall when it's not as slick as a VW combustion car, and not as polished as a Toyota hybrid, either of which are half the price.

Mercedes-AMG invited us to the Jarama race circuit just outside Madrid in Central Spain, and the twisting B-roads nearby, to sample its latest pride and joy.

In the AMG tradition the engine is assembled by hand, by one technician. And hats off to the spanner twirlers, they do a great job. It's a spectacular unit. Torque delivery is shaped to mimic a naturally aspirated engine, with the maximum figure arriving between 5000-5250rpm.

But that's not to say it's hollow in the mid-range. Around 90 per cent of that peak number is available from below 3000rpm and low-end throttle response is brilliantly crisp and linear, helped in no small part by roller bearings on the turbo for a quicker spool up.

Merc-AMG claims 4.0 seconds for the sprint from 0-100km/h, which is supercar fast and with drive going to all four wheels entertainment is the name of the game.

The eight-speed dual-clutch auto is positive and sharp, especially in manual mode where shifts flick through in much less than the blink of an eye.

And as the A 45 S beefs up the A-Class on the outside, it's the same underneath the skin with body reinforcement including an alloy sheering plate under the engine, a front strut tower brace, extra reinforcement between side members and A-pillars, and diagonal struts on the front and rear of the underbody.

So, the strut front, four-link rear suspension has an extra stiff platform to hang from, and the three-mode 'Ride Control' active damping can transform the ride from soft and compliant to tightly buttoned down.

The speed-sensitive, electromechanical steering is specifically tuned for this car, and it points accurately with good road feel and pleasantly firm weight in Sport and Sport+ modes.

Rubber is Michelin Pilot Sport 4 S, and it grips hard. On the fast and technical Jarama circuit they performed flawlessly, helping the A 45 S transform its prodigious power into maximum forward velocity without fuss.

The icing on the dynamic cake is 'AMG Dynamic Select' with six modes from 'Comfort' to 'Race' adjusting the engine, transmission, steering, suspension, and exhaust.

On top of that 'AMG Dynamics' uses the ESP and torque vectoring (by braking) to vary the level of stability and slip through four levels from 'Basic' up to 'Master'.

We played with all the toys including 'Race Start' and a 'Drift Mode' made possible by a new rear axle featuring two multi-disc clutches - one for each rear wheel.

Torque is split variably between front and rear axles with a default setting of 50/50 rising to around 70 per cent to the rear when pushing hard. Drive is also continuously managed across the rear axle, and like a swan gliding across the lake all the action happens seamlessly out of sight, turning you into a track hero in the process.

The first-gen A45's exhaust was a mass of pops, bangs and crackles, while this car's more rasping and rorty exhaust note is controlled by a flap in the system adjusted by engine speed and load. It's also amplified by the 'AMG Real Performance Sound' system, which puts some actual engine and exhaust noise (nothing is synthesised) through the speakers.

Open road ride comfort in the softest setting is surprisingly good, with rough surfaces unsettling the car only slightly despite the big 19s and high-performance rubber. Body control is S and S+ settings is spot-on, the car feeling planted, predictable and ultra-responsive on tight, twisting backroads.

Braking power is professional grade with six-piston calipers at the front and single piston rear, on vented and perforated rotors all around. Even following session after session on the track there wasn't a hint of fade.

Although final Australian spec is yet to be finalised, you can expect a host of active safety tech including ABS, BA, EBD, stability and traction controls, a reversing camera (with dynamic guidelines), 'Active Brake Assist' (Merc-speak fo AEB), 'Adaptive Brake', 'Attention Assist', 'Blind Spot Assist', 'Cross-wind Assist', 'Lane Keep Assist', a tyre pressure warning system, the 'Pre-Safe' accident anticipatory system, 'Traffic Sign Assist' and 'Adaptive Highbeam Assist'.

If all that fails to prevent an impact you'll be protected by nine airbags (front, pelvis and window for driver and front passenger, side airbags for rear seat occupants and a driver's knee bag), and the 'Active Bonnet' automatically tilts to minimise pedestrian injuries. A first-aid kit and hi-vis vests in the boot are thoughtful additions.

The A-Class was awarded a maximum five ANCAP stars in 2018, and for smaller occupants there are three child restraint/baby capsule top tether points across the back seat, with isofix anchors on the two outer positions.

Mercedes has caught up with most of the mainstream pack, now offering a five-year and unlimited kilometre warranty across its whole passenger car range. It's ahead of many of its rivals in the luxury segment, but matched by Korean newcomer, Genesis.

The A 250 e needs to be serviced once a year or every 25,000km, and pricing is no different from a non-electrified A 250. Pre-packaged service pricing for three years is $2050, four years is $2950, and five years is $3500.

Not ‘cheap' in the grander scheme, but there's no downside for picking this particular variant despite all of its extra equipment.

The Mercedes-AMG range is covered by a three year/unlimited km warranty, which, like Audi and BMW lags behind the mainstream market where the majority of players are now at five years/unlimited km, with some at seven years.

On the upside, Mercedes-Benz Road Care assistance is included in the deal for three years.

Service is likely to be scheduled (as per the out-going CLA 45) for 12 months/20,000km (whichever comes first) with pricing available on an 'Up-front' or 'Pay-as-you-go' basis.

For the first-gen CLA 45 pre-payment delivers a $500 saving with the first three services set at a total of $2950, compared to $3650 PAYG. Fourth and fifth services are also available for pre-purchase.