Honda Accord vs Mercedes-AMG S63

What's the difference?

Will the new Honda Accord e:HEV RS topple the SUV throne? Unlikely, but it proves sedans can still haul the family around in relative comfort and style.

The new Accord drives stupidly well and offers great ongoing ownership costs, even if it's price tag is a little steep. It's hybrid powertrain also offers fantastic efficiency and that's a big win.

Both of these vast vehicles are phenomenally comfortable - this is the kind of car that Mercedes does so well, and has done for decades. The S Class is rarely a disappointment but it's difficult to believe that such a big, heavy GT car can also dance the way the S63 does.

The S560 is far more weighted to being a GT - supremely comfortable with that active suspension, a growly, refined V8 and a cabin full of gadgets and comfort. The S63 is altogether more aggressive, to look at and to drive. Lopping the roof off both of them adds weight but, like any cruiser, also puts you out in the sun, the breeze and into your surroundings. Plus, in the case of the S63, you get more exhaust noise.

They're two very different cars and not just because of the engine. After all these years admiring it from afar, the S63 has delivered on my teenage expectations - fast, smooth and utterly mad.

The design for the new Accord is powerful with a sexy silhouette that features a rear spoiler, black accents and sporty 18-inch alloy wheels.

The old chunky grille is long gone and at certain angles you almost get a Nissan 200 SX vibe, which is gorgeously retro and a refreshing take for Honda - which has been playing it safe for the last few years.

The interior is simply styled but looks timeless. The dashboard has clean lines and a featured honeycomb mesh that hides the air-vents. It's a feature which might not land with everyone but it adds personality.

The black upholstery looks plush and there are enough soft-touchpoints to make the cabin feel like it deserves a premium tag.

The S Class Coupe is obviously related to the sedan but manages a svelte appearance. Slimmer hipped and with a more Coke-bottle shape, the Coupe - if you squint a bit - has a bit of the classic old pagoda about it. Obviously you can't do pillars that slim anymore, but the glass roof takes away some of the visual weight inside and out. 

The cabriolet's roof is nicely integrated and looks good when it's  up, which isn't always the case.

They all look long, though. It's obvious to see why the cars all run on 20-inch wheels - anything smaller would look hilarious.

The cabin is a fairly sensible re-imagining of the E-Class. The big twin-screen layout of the dash and multimedia system seems a bit more at home here. The chintzy Burmester speakers in the doors let down an otherwise classy cabin, which steers clear of otiose vulgarity in looks and materials.

Access to the cabin is great thanks to wide door apertures but the Accord is a low car to get in and out of with its 134mm ground clearance. Expect a couple of grunts when parked on a hill!

Both rows offer ample legroom but the front enjoys the best of the headroom. A 183cm (6.0ft) friend was lumped with the middle seat and spent the trip dreadfully hunched over and uncomfortable. Save the middle seat for kidlets.

The electric front seats offer decent comfort for a longer trip but it's disappointing that only the driver’s side gets lumbar support.  

The rear row enjoys well-padded seats and amenities, like retractable sunblinds, reading lights, two USB-C ports and directional air vents but it took a while for the back to cool down on hot days which my kid made known. Loudly. 

Storage consists of a large glove box and middle console (which can accommodate a small handbag), a sunglasses holder, four cupholders, four drink bottle holders and two map pockets. There is also a dedicated phone tray but a few extra cubbies up front would be welcomed.

The boot offers plenty of space with its 570-litre capacity, which is great for the class, and you can also open up storage options with the ski-port door, if need be. The powered boot release is a handy feature.

The touchscreen multimedia system looks nice but is a pain in the butt to use until you set some time aside to get to know it. It’s just not intuitive but the screen is responsive and it's a bonus that you get the built-in sat nav and Google apps. 

The new Accord gets wired and wireless Apple CarPlay and Android Auto but it took a few beats to get the wireless CarPlay to work.

The charging options are good throughout the car with four USB-C ports, two 12-volt sockets and a wireless charging pad to choose from.

Well look, if you end up in the back of the S Coupe, it's not a riot of space. Obviously it has back seats (the SL doesn't even squeeze a jump seat into its considerable length) but they're for occasional, if luxurious, use.

The boot is a reasonably decent 400 litres, obviously the cabriolet loses a few litres with the roof folded. Front and rear passengers will both enjoy a pair of cupholders and the whopping long doors will each hold a bottle.

One thing hasn't changed in nearly 20 years - the S isn't cheap. Available in coupe and cabriolet, the S560 starts at $314,900 for the former and $336,900 for the latter. Step up to the S63 pair and you'll pay from $370,500 for the coupe and $399,900 for the cab. If you're super keen for something spectacular, the twin-turbo V12-powered S65 is available for between $508,900 and $520,500, and features Swarovski crystals in the headlights, for some reason.

As you can imagine, there's quite a bit to cover, so for both cars I'll stick to the edited highlights. The S560s roll on 20-inch alloys, has a 590-watt 13 speaker sound system, digital TV, auto parking, active cruise control, panoramic glass roof, Nappa leather, active seats and power-closing doors.

It also comes standard with a heating pack that not only heats the seats but the steering wheel and centre console. In the cabriolet you also get the 'Airscarf' neck heater.

Both cars also feature's Mercedes' Magic Body Control with curve function. More of that wacky feature later.

The S63 AMG is a step up in power, price and spec. One notable change from the S560 is the loss of 'Magic Body Control', which is replaced with mere air suspension. The 20-inch alloys are 10-spoke forged units, the brakes higher performance composites with red calipers, while an AMG sports exhaust brings the noise.

Naturally, both are swathed in high-quality leather and feature dual-zone climate control, heated and cooled electric seats that adjust in every direction, deep carpets, keyless entry and start, fully digital dashboards and just about every gadget to which you can point your imagination.

Entertainment and sat nav are via Mercedes' 'Comand' system, which is displayed on a massive 12.3-inch slab of glass at the top of the dashboard. The 13-speaker Burmester-branded system is predictably impressive and with Apple CarPlay and Android Auto, you only have to use the basic software for the radio or various car controls.

Our test vehicle has an electric continuously variable transmission and features a new self-charging hybrid powertrain that couples two electric motors with a 2.0L, four-cylinder petrol engine that combine to produce 135kW of power and 335Nm of torque.

Only being available in one powertrain may limit its audience but the combo delivers decent performance for a sedan of this size.

All four coupes and cabriolets ship with Daimler's formidable 4.0-litre twin-turbo V8. The S560 scores 345kW/700Nm to drive the rear wheels through Benz's own nine-speed automatic. With all of that available, the S560 will crack the ton in 4.6 seconds and make a wonderful racket on the way.

Moving on to the S63, the same engine delivers a massive 450kW/900Nm. The run from 0-100km/h is dispatched in just 3.5 seconds and if I thought the S560 made a good noise, the S63 with its standard sports exhaust makes a better one. Again, Mercedes' nine-speeder is along for the ride.

The new hybrid powertrain means lower outputs and the official combined fuel cycle figure is just 4.3L/100km! Which is only beaten by the Toyota Camry's 4.0L/100km.

The on-test figure pops out at 5.1L/100km after doing a some urban stuff but mostly open-road driving. Which is where hybrids tend to be the least efficient, so the fuel usage is excellent.

Based on the official combined (urban/extra-urban) fuel cycle and 48L fuel tank, you should see a theoretical driving range of up to 1116km, which is a little less than the Toyota Camry but still an amazing range for a family car.

That range figure drops to around 940km using our real-world average consumption number.

The lower-powered 560 drinks 98RON at the rate of 8.5L/100km for the coupe and 9.9L/100km for the heavier cabriolet.

The S63 ups the ante with 9.9L/100km for the coupe and an identical 9.9L/100km for the cab.

Our launch program contained some...er...spirited driving, which would explain the mid to high-teens fuel figures.

Power delivery for the new Accord is pretty punchy and, in most scenarios it’s responsiveness is great. But occasionally, when you’re getting up to speed, there can be a small lag before things kick in.

The Accord handles like a dream and feels firmly planted on the road in corners. Even in high winds, the car feels stable and sure of itself. Delightful.

The cabin is quiet and engine noise is at a minimum most of the time. Around town, the Accord sounds and behaves like an EV. Only once you hit the open road do you get some road noise but it never intrudes on chatting.

It might also be one of the easiest sedans to park and it's got a lot to do with the top-notch 360-degree view camera system and direct steering.

Let's start with the S560. That smooth V8 rumble is all you'll ever hear if you just slot into drive and go for a leisurely spin. The nine-speed automatic continues to be a revelation to me - in the GLC63 it's good and here, once again, it's excellent, finding the right gear for the occasion and riding the fat torque curve. Other nine-speed autos are not very good at all.

The test route for the S560 played to the strengths of the car. It had some lovely winding roads, which brought the trick suspension into focus - the Magic Body Control with curve function is hilarious. While the active suspension works hard at all times to ensure the ride is smooth and drama free, the Curve mode (no, really) actually leans the car into corners.

Those of you who remember the video game Wipeout 2097 will be big fans of Curve mode. As you approach a corner, you turn the wheel and then the car leans into the bend. This isn't active damping reading the road, it's the outside suspension lifting the car and the inside lowering it, so the car feels like it's gliding, like a hovercar. It's wild but oddly calming. Mercedes reckons it's great for those who get car sick. As I didn't have my wife on hand to test this theory - she chucks at the first sign of a corner - I couldn't verify this claim. That will have to wait.

The S63 AMG is a completely different proposition. The air suspension is more than up to the job of helping smother the effects of the car's considerable weight, meaning that no matter what you're up to, the car feels reasonably light on its feet. It never feels small, though, commanding the respect of the driver and plenty of space from other road users.

And boy, do you need some space if you kick the S63 into Sport mode. In true AMG style, the electronic reins relax and the big luxury coupe cheerfully kicks off. The tail will wriggle under an unsympathetic right foot, that signature V8 roar, crackle and hiss filling your ears. The S63 is always the harder-feeling car, but it delivers with a more sporting drive than the S560.

Being the generous soul I am, I volunteered to return the S63 to its home for the evening rather than consign it to the back of a truck. On the back roads I took to reach the highway, it was rock solid - fast, predictable and a lot of fun. Once I found the boring straight bits, it turned into a supremely comfortable cruiser, ticking along in ninth at the legal limit (and being Melbourne, it was very much the legal limit), dispatching overtaking with barely a flex of a toe. 

The active cruise took the stress of keeping away from the State Revenue Office's clutches while being quiet and utterly pleasant.

The S-Class coupe comes loaded with eight airbags, ABS, stability and traction controls, forward and reverse AEB with pedestrian detection, reversing camera, crosswind assist (I know, right?), traffic-sign recognition and reverse cross traffic alert.

The S-Class Coupe does not have an ANCAP or EuroNCAP rating.

The Accord comes with a five-year/unlimited km warranty, and an eight-year battery warranty, which are now normal terms for the class.

You get a five-year capped priced servicing program and it costs just $199 per service, which is very competitive.

Servicing intervals could get annoying if you put a lot of kays on your car as they're set at every 12-months or 10,000km, whichever occurs first.

Mercedes offers a three-year/unlimited-kilometre warranty with roadside assist for the duration.

The company also offers both service plans (where you pay up-front as part of the vehicle purchase) and capped-price servicing on the coupes. Servicing over three years is in the order $2500.