Audi TT vs Mercedes-Benz A45

What's the difference?

Audi is finally saying hooroo to this model which has made the world stop and stare like I did on that Parisian street all those years ago.

The Final Edition is a fitting tribute to this iconic sports car and I’m glad Audi didn’t go ‘OTT’ and deck it out with gimmicky features. 

At the same time the Final Edition’s big rear wing, blacked out badges, wheels and interior colour coding hint that this is not just any ordinary TT and those that know will know.

Farewell Audi TT, we hope something just like you but probably electric appears to stop us in our tracks again. 

The Mercedes-AMG A 45 4Matic+ may have grown up a bit in that it’s not as noisy or uncomfortable as the first-generation version which arrived in 2013, But if anything, its more portent than ever. Superb Mercedes-AMG craftmanship, outstanding performance and good value as far as bang for your buck goes.

The Audi TT’s shape has morphed over the past 25 years from the cute, rounded bubble car that first appeared in the late 1990s to the more aggressively and sleek looking sports car with the sharp creases we see today.

Still, there are the familiar pumped-out wheel arches and, while not as prominent as it used to be, that arching roof and the way it flows down to those tail-lights and stumpy tail remains so true to the original TT.

The TT Final Edition has a more menacing and athletic look than the regular 45 TFSI its based on thanks to the S Line Competition Plus exterior package.

So you’re getting the big fixed wing, an aggressive front bumper, and the 19-inch alloy wheels in gloss black.

There’s a black package, too, which add the decals down the side, the blacked-out badges, the black exhaust tips and black wing mirrors.

My test car’s paint colour was Turbo Blue and you can see in the images of the cabin how Audi matches interior elements in the same colour. The contrast stitching on the seats also lifts the sporty feel into high-end territory.

It’s a simple cabin, though, free from busy buttons and giant screens and the incorporation of climate controls into the air vents is genius. 

If you’re wondering what the TT Final Edition’s dimensions are its 4191mm long, 1832mm wide and 1376mm tall. 

When I went to pick up the Mercedes-AMG A 45 S 4Matic+ I walked right past it and then like that lost and confused John Travolta in Pulp Fiction internet memes, wandered around before asking where the car was.

That’s because I was looking for something with a gigantic spoiler on the roof and probably hi-vis green with stripes. But the car assigned to me was the A 45 S in its standard form, and the styling is subtle enough for it disappear into a crowded car park like James Bond into a lavish dinner party.

But like Bond, chances are the A 45 S is the most hardcore person in the room, it just doesn’t walk in announcing it to everybody.

Look closely and you'll see that the A 45 S is not just another small prestige car. There’s the 90mm quad exhaust poking out of the chunky diffuser, the giant 'Panamericana' grille, and the angry looking front apron.

Then, there are the 19-inch matt black alloy wheels wrapped in low-profile Michelin rubber and enormous brake discs with their red calipers, all barely contained by the pumped up front wheel guards which are much bigger than those on a regular A-Class.

The cost option my test car wore was the 'Mountain Grey Metallic' paint, but if anything it made the A 45 look even more covert.

The cabin is small but luxurious and sporty with two-tone leather upholstery (the red and black 'Lugano' leather in my test car is a no-cost option), there’s the microfibre-clad AMG steering wheel, brushed aluminium trim, metal-trimmed pedals and the large display panel (it’s actually two screens joined) is also standard.

The A 45 S is a hatchback measuring 4445mm in length, 1850mm wide and 1412mm tall. Not keen on a hatch but want something with similar dimensions? The CLA 45 S is the A 45 S’s four-door twin-under-the-skin and is just as much of a weapon.

And if you want your A 45 S to look more aggressive, you can option the 'AMG Aero Package' which will see a giant rear wing fitted to the roof.

Or you can buy the Edition 1 version of the A 45 S which includes the big spoiler and shouty design bits to makes sure everybody knows you’re the assassin in the room.

The Audi TT isn’t going to cut it as a family car, but it’s more practical than a lot of people might think.

First this is a '2+2' sports car meaning those two rear seats are there for the odd occasion when you might need them, because the space back there is limited.

But for most of the time having a place to throw a jacket or extra luggage and not have to ask your co-plot to rest it on their lap will feel like absolute luxury.

Up front head and legroom is good, even for me at 189cm tall. Being a coupe the doors are long and although the car is low I found getting in and out easy.

There’s a pretty clever use of space when it comes down to cabin storage. You’ll find door pockets, a glove box, a covered centre console box and a hidey hole/wireless phone charger in the dash.

Back seat passengers have built-in shelves near their armrests. Surprisingly there are four cupholders - two of which fold out of the dash.   

The boot isn’t huge at 305 litres but you can fold the rear seats down to open up the cargo capacity to 712 litres.

So, compared to its two-seater sports car rivals, the TT is relatively and pleasantly practical.

Along with good performance and handling, part of the appeal of hot hatches is that they’re practical… to a degree. The A 45 S is a small car, but it has four doors, five seats and a boot.

The cabin is small, no doubt about it, but even at 191cm tall I had plenty of room while driving, the seating position is perfect actually, although sitting behind my driving position saw my knees just touching the seat back.

Headroom is getting limited back there, but I still had space. Could you get away with the A 45 S as a family car? I had my family in it for a while, but there’s just the three of us and my son is pre-school-aged. So, a young, small family, yes… until it starts to grow.

Cabin storage is good with two cupholders in the rear centre fold-down armrest along with small door pockets and seat-back nets. Up front there are another two cupholders, giant door pockets, a big split-opening centre console bin and a tray for the wireless charger big enough to fit an iPhone 11 Pro Max.   

Boot space is good at 370 litres. The big shiny CarsGuide suitcase fitted in easily (see images) and apart from the wide-opening of the boot, another hatch power of practicality is that you can fold the rear seats down to open up more cargo carrying space, and in the A 45 S’s case that’s 1210 litres.

I’ve mentioned the wireless charger but there are also four USB-C ports (two up front and two in the rear), back seat passengers also have directional air vents, which is another bonus, along with dark tinted windows (welcome when my son was sitting back there in his car seat).

The new Mercedes-AMG A 45 S 4Matic+ lists for $93,600. Coming standard are the 19-inch matt black alloy wheels, the quad exhaust and chunky diffuser, Panamericana grille and AMG front apron, the red brake calipers, small roof-top spoiler and privacy rear glass.

Inside, the A45 S comes standard with sport seats and tone-tone leather upholstery – there’s ‘Yellow cut’ leather with contrasting yellow top stitching (or in the case of our car the no-cost option of red and black Lugano leather), and an AMG Performance steering wheel clad in 'Dinamica' microfibre.

Also standard is the large landscape display which is actually two 10.25-inch screens; one for the digital instrument cluster and another for the media system.

There’s also Apple CarPlay and Android Auto, sat nav, a Burmester stereo, 'Mercedes Me' (voice recognition) assistant, digital radio, wireless phone charging, power adjustable and heated front seats, dual-zone climate control, ambient lighting, proximity key, LED headlights and a panoramic sunroof.

The only feature I felt was missing was a head-up display, which needs to be optioned.

In the first year of sale (until the end of 2020) an Edition 1 version of the A 45 S will be sold. Listing for $101,690 the limited edition comes with a tougher look thanks to the addition of the AMG aero package which fits the giant rear wing, along with 19-inch twin-spoke matte black alloy wheels, door decals and AMG performance seats. Oh, and it only comes in 'Sun Yellow.'

Rivals to the Mercedes-AMG A 45 S 4Matic+ come in the form of Audi’s RS3 Avant, the BMW M2 or, and this may seem like an odd suggestion, the Tesla Model 3 hatch. The latter is a pure electric vehicle but has a 0-100km/h time of 3.4 seconds and an output of 335kW… just saying.

Sitting under the A 45 S 4Matic+ in the A-Class range is the A 35 4Matic for a list price of $69,300. The A35 doesn’t come with the big Panamericana grille and the 2.0-litre engine has a lower output but still packs an impressive 225kW/400Nm.

The TT Final Edition has the same 2.0-litre, four-cylinder, turbo-petrol engine as the regular 45 TFSI TT Coupe with the same 180kW and 370Nm outputs.

The TT is light, though, at only 1460kg and that grunt is enough to slingshot it from 0-100km/h in 5.1 seconds.

The transmission is an eight-speed dual-clutch automatic which sends drive to all four wheels.

Sure, the TTS has more grunt and the TTRS is nothing short of wonderful with its five cylinder powerplant, but the 2.0-litre engine in the Final Edition feels perfectly suited to what is a fun and engaging sports car.

There may be hot hatches out there which look wilder than the Mercedes-AMG A 45 S 4Matic+ but do they have the most powerful four-cylinder engine ever to go into a mass-produced car? Nope, but the A45 does: it’s a 310kW/500Nm turbo-petrol four.

It doesn’t sound as angry and gravelly as the previous A 45’s engine but it has more grunt (an extra 30kW/25Nm) and is claimed to catapult the hatch from 0-100km/h in 3.9 seconds.

The '4Matic' part of the name indicates the hatch is all-wheel drive and the '+' means it’s a more sophisticated version of the system which allows all of the drive to be sent to one axle, if need be.

What need would that be? The need to drift, of course, which should be up there with other human rights such as clean air, fresh water and free speech.

Yep, the A 45 S comes with 'Drift Mode' (for the racetrack, of course), along with a 'Launch Mode' for perfect-every-time transitions to warp speed.

Changing gears gunslinger-fast is an eight-speed dual-clutch automatic transmission.

Audi says that after a combination of open and urban roads the TT Final Edition should use 7.0L/100km.

My own testing took in a combination of the best country roads and worst city traffic and at the fuel pump I measured 10.9L/100km.

But most of my time was spent in 'Dynamic' drive mode with the fuel-saving idle stop system switched off. 

The TT's 55-litre fuel tank means you should have a range of about 785km.

Mercedes-AMG says the 2.0-litre, turbo-petrol, four-cylinder in the A 45 S should use 8.9L/100km after a combination of open and urban driving.

My fuel test saw me drive 131km of urban and country roads, plus some motorway sections, and needed 16.9L of premium unleaded petrol to fill the 51-litre tank back to full.

That comes to 12.9L/100km, which is thirsty, but my driving style may have contributed significantly to that high figure.

There are plenty of sports cars out there which are dynamically superb yet uncomfortable to sit in.

But the TT’s cabin is as ergonomic as it is stylish with a great, low sitting position and good pedal feel, a steering wheel that can be adjusted to be just right and still with plenty of space underneath for long legs like mine.

The shifter feels the right distance away, good visibility even out the rear window and plenty of ventilation.  And we haven’t even started driving yet.

The TT Final Edition felt to me how a TT should. Fun. Not overpowered nor brutally firm and not ridiculously loud.

Instead, my drive in the Final Edition, which took me along some of my favourite country roads, was one of the most enjoyable runs I’ve had in any car. 

This is a car which ‘listens’ to you and replies with exactly what you’ve asked for in the way it turns into corners and accelerates out of them, and pulls up when you need it too. 

There’s so much connection to the road, you can hear the sticks and stones flying up into the guards, you can feel the coarse chip bitumen through the steering wheel.

But it’s all so easy, too. The suspension is firm but soft enough that you can drive this daily. The steering is light but still with great feedback. 

Some sports cars leave you feeling exhausted, like you’ve just wrestled a bear but the TT Final Edition just leaves you feeling like you've been on a ride and all you want to do is run back around to line up and get back on it again.

I wasn’t lying in the introduction to this review. The previous A45 was a pretty intense driving experience. The ride felt brutal, the exhaust note screamed and crackled like somebody had set a wheelie bin full of fireworks alight.

And then there was the sweating. I seemed to sweat a lot driving it and there was nothing wrong with the climate control, that just happens to me when I’m under pressure and excited.

So, has the new-generation A 45 S 4Matic+ gone all soft and quiet on us? No, but things have been toned down a tad.

The exhaust note is not as gruff or loud, and even in 'Sport +' and 'Race' mode it’s still quiet enough to pull into a driveway at night without making enemies of your neighbours.

And the ride is also not as harsh, although even in 'Comfort' mode my wife still found it verging on too firm.

The performance and dynamics, however, felt as sharp as ever.

Acceleration is supercar quick at 3.9 seconds. My gawd, you needed a Ferrari F40 to do that in the mid-’80s, and even now the new Mercedes-AMG GT S supercar gets there only a tenth of a second earlier, and it has a twin-turbo V8.

Top speed for the A 45 S is electronically limited to 270km/h. But hot hatches aren’t really about straight-line speed, they’re more about bent-line speed. You know, corners.

So, I took the A 45 S on the twisty roads I take anything that calls itself sporty. The agility of the A 45 S is outstanding thanks to a rigid chassis that handles a change in direction as quickly and easily as you can turn your head.

The brakes bite hard when they have to, and the all-wheel drive hatch scrambles tenaciously out of corners.

A racetrack is really the best place to truly test a serious sports car's limits and our own James Cleary did just that when he drove the A 45 S at its international launch.

As a daily driver, though, for somebody who occasionally likes to get into it on a curvy road the A 45 S is comfortable enough to live with, but hard enough to remain engaging and dynamic when you get the chance to have a squirt.

The Mercedes-AMG A 45 S 4Matic+ received the maximum five-star score when it was tested by ANCAP in 2018.

The safety equipment list is impressive. Along with nine airbags and a 360-degree camera there’s advanced safety tech such as AEB with cross traffic function, blind spot warning, lane keeping assistance, lane change assistance, auto parking and adaptive cruise control.

For child seats there are three top tether points and two ISOFIX mounts across the second row. Small hatches are the easiest cars to put top tether seats in thanks to the good access to the hook point. I fitted my son’s car seat into the back of the A45 S without any problems.

The TT Final Edition is covered by Audi’s five-year, unlimited kilometre warranty.

Serving is recommended every 12 months or 15,000km and although Audi doesn't have capped price servicing there is a five-year/75,000km plan which will cost about $3000 in total for regular maintenance. Yep, that's $600 per workshop visit.

The Mercedes-AMG A 45 S 4Matic+ is covered by a five-year/unlimited kilometre warranty.

Servicing is recommended at 12 month/20,000km intervals. Servicing is capped at $850 for the first year’s visit, $1200 for the next and $1600 for the third.