Mercedes-Benz SL63 vs Deepal S07

What's the difference?

The new Mercedes-AMG SL63 4Matic+ is guaranteed to turn heads for decades to come. But there’s enormous design and engineering substance underpinning this car’s undoubted good looks. Stunning performance, superb dynamics and top-shelf safety make this a powerhouse GT to be reckoned with.

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

The Deepal S07 has the makings of a great family friendly EV, but with some quirks that really need to be ironed out.

Rather than a strict two-seater, this time around the SL adds the flexibility of ‘+2’ rear seating while the previous 'Vario’ folding hardtop has been binned, the new car returning to a traditional, electrically-folding and weight-saving (-21kg) soft top. 

Mercedes-Benz design chief Gorden Wagener started the new model’s development from a ‘clean sheet’ and Mercedes-AMG says “not a single component comes from the predecessor SL, or any other model such as the AMG GT Roadsters”. 

Always a subjective call, but I think this car’s proportions are just about perfect. The lengthy bonnet with its twin longitudinal ‘Power Domes’, raked windscreen and fat haunches create a wide stance and presence that’s almost impossible to ignore.

Aggression, as with the sinister headlights and 21-inch rims, is subtly combined with soft curves along the flanks and around the rear. Note the seamless door handles.

And it’s not all about aesthetics. Active aero has been integrated into the front apron and retractable rear spoiler. Plus the ‘Z-fold’ roof design does away with the need for a separate cover.

The interior is sub-zero cool with slick screens, an 11.9-inch display covering multimedia and a 12.3-inch unit for instrumentation ahead of the driver, being particular highlights.

Turbine-style air-vents at the leading edge of the split-level dash and alloy trim elements are a tip-of-the-hat to SLs past and the deft mix of large flat surfaces with complex curves oozes design confidence.

If you’re left a little underwhelmed from the bland same-sameness of so many new SUVs, I reckon you’d like the Deepal S07 in the metal. Because boring it ain’t.

It’s sharp and purposeful and full of lovely creases and angles, and it stands out on the road — especially in this 'Sunset Orange' colour.

Deepal says it was designed in Turin, Italy, but I'm not sure that matters much. I mean, being in Italy doesn’t guarantee design success – just look to the modern Lancia range for proof – but I guess it’s something for a newish Chinese brand to hang its hat on.

Inside, the design is lovely, too. I like the materials used, the extended dash and the size of the central screen (though it tilting towards you or the passenger is probably overkill). And the flat-bottom wheel is a nice touch.

I'd like to know where the air con was designed, though. It feels massively underwhelming on a piping hot Sydney day. The main outlet is at the bottom of the dash, which is perfectly positioned to chill absolutely nothing, and you can’t really change the direction of the vents, either. Or, at least, I couldn't figure out how to.

In the context of a high-performance GT, practicality is pretty impressive.

At just over 4.7m long the SL is a sizeable machine and much of its lengthy (2700mm) wheelbase is devoted to making the driver and front passenger comfortable.

There’s plenty of space for that pairing and just enough storage to cope with the ‘things’ they’ll typically bring with them.

Door pockets offer enough room for a few odds and ends, although you’ll struggle with even a medium-size bottle unless you’re willing to lay it down horizontally along the top of the aperture.

A handy lidded bin between the front seats doubles as a centre armrest, there are two cupholders under a sliding lid in the centre console and the glove box is a decent size. 

Power and connectivity options run to four USB-C ports, a 12-volt socket and the wireless device charging pad.

Then there are the rear ‘+2’ seats, and Mercedes makes no bones about the fact they’re intended for occasional use only, even suggesting a 1.5m occupant height limit.

And there’s no doubt they offer a handy emergency seat or a fun kids’ zone. Just ask a Porsche 911 Carrera owner how much this kind of seating arrangement increases a sports car’s flexibility.

At 183cm I gave the back seat a crack, which meant sliding the front (passenger) seat way forward with the backrest close to upright. But I squeezed in, and there was just enough legroom for a person in front at the same time. 

With the roof in place there’s the added pleasure of cranking your head over to around 45 degrees. But it’s do-able! 

No storage, adjustable ventilation, or power back there. But that’s fair enough, especially given there are USBs available in the front centre storage box.

Boot volume is 240 litres with the roof up and 213 litres with it folded, which is enough for some light luggage, and not too shabby when you think a Toyota Corolla hatch offers up just 217 litres (with all seats up).

There’s a 12V socket in there, but don’t bother looking for a spare, in the event of a flat your only option is a repair/inflator kit.

At just over 4.7m long and 1.9m wide, with a 2.9m wheelbase, the Deepal is a sizeable proposition, which means good passenger room and decent luggage space.

Starting at the boot, you’ll find 445 litres with the rear seats in place, but with the seats folded flat that number grows to 1385 litres. There’s a frunk up front, too, that holds another 125 litres.

In the back, the room is ample for full-size adults. When sitting behind my own 175cm driving position, I had more than enough knee and headroom to sit comfortably. 

There’s also a heavy pulldown divider that’s home to twin cupholders, and there are two more up front, and USB connection points galore. Bonus points for the back seat riders being able to adjust their own air temps, too.

It’s easy picking in the Deepal range, given there’s one model with just the one trim level, simply called the S07.

It’s currently $58,521 drive-away in NSW, or $53,900 before on-road costs. And that’s probably about right. You can get an entry-level Kia EV5 for $56,770, though with less range and kit, or the XPeng G6 Standard Range for $54,800, though that’s before on-road costs. The new Model Y is a bit of a jump, at $63,400 on the road.

For that you get 19-inch alloys, a fixed sunroof with a sun shade, LED lighting all around and a powered boot. 

Inside, there’s a giant 15.6-inch touchscreen that can swivel towards the driver or the passenger, wireless Apple CarPlay and Android Auto, a 14-speaker Sony stereo and wireless device charging.

There’s dual-zone air con, the seats (heated and ventilated up front) are trimmed in synthetic leather and there’s an interior camera with gesture control, so you can use a kind of sign language to take a photo, control the stereo or answer or hang up the phone. It's weird and makes you look like a turkey, which is why I used it once and once only, but you might like it.

This new ‘4Matic’ all-wheel-drive SL63 features AMG’s (M177) 4.0-litre twin-turbo V8, superseding the previous rear-wheel-drive SL’s similarly configured 5.5-litre unit.

Hand built by one AMG technician from start to finish, it produces 430kW (around 580hp) from 5500-6500rpm and 800Nm across a broad plateau from 2500-5000rpm.

It’s something of a mechanical masterpiece, and the previous seven-speed auto transmission, driving the rear wheels only, has been replaced by a nine-speed dual-clutch auto (with wet multi-disc start-off clutch) sending drive to all four wheels via Merc’s ‘4Matic’ AWD system.

The S07 is powered by a single 160kW/320Nm rear-mounted electric motor and it's rear-wheel drive. That’s enough output, says Deepal, to push the S07 to 100km/h in 7.9 seconds — not bad for a two-tonne-plus SUV.

Mercedes-AMG’s official fuel economy number for the SL63 on the combined (WLTP) cycle is 13.9L/100km, the 4.0-litre twin-turbo V8 emitting 319g/km of CO2 in the process.

On the roughly 300km launch program we covered urban, B-road and some freeway running, returning an (indicated) average of 17.5L/100km. And that reflects some enthusiastic driving along the way.

The fuel tank requires 70 litres of 98 RON premium unleaded to fill it which translates to a theoretical range of around 500km, dropping to 400km using our real-world number.

The 79.97kWh ternary lithium battery delivers a claimed driving range of 475km. It is, however, set up for just 92kW DC fast charging, which means going from 30 to 80 per cent will take just over half an hour. That’s at an appropriate DC fast charger, of course. Your 7.0kW AC home wallbox will take 11 hours, or eight hours if you can draw 11kW.

I recall driving the AMG SL65 around the backroads of Tassie a few years ago and that twin-turbo V12 monster famously packed 1000Nm of torque, while this car ‘only’ has 800.

But there comes a point where enough is enough… and this is enough!

With maximum torque available from 2500-5000rpm and peak power (430kW) on call from 5500-6500rpm there’s always stupendous acceleration available with a squeeze of your right foot.

Claimed 0-100km/h time is supercar fast at 3.6 seconds, while top speed is a toupe-troubling 315 km/h. And that’s electronically limited!

A typically ferocious engine noise and howling exhaust note accompany rapid progress and shifts from the nine-speed dual-clutch transmission are quick and positive, not to mention especially enjoyable using the steering wheel-mounted paddles.

There are six ‘AMG Dynamic Select’ drive programs from Comfort through to Race, the latter including a Drift Mode, which we didn’t experiment with. Nor did we dip into the ‘AMG Track Pace’ system for circuit-focused mapping and timing

However, far from drifting, the grippy Michelin Pilot Sport 4S rubber (275/35 fr - 305/30 rr) plants the car securely with the all-wheel-drive system and electronic locking rear diff playing their part.

I found the perfect set-up was in the ‘Individual’ mode with the engine, transmission and steering in racier settings and the suspension in ‘Comfort’. The adaptive damping in this configuration mixes smooth ride compliance with sharp dynamic response.

The car’s aluminium space frame chassis is part of a body structure mixing aluminium, magnesium, fibre composites and various strength steels.

Torsional rigidity is claimed to have been improved by 18 per cent and despite the lack of a roof the SL feels tight and solid.

Suspension is by alloy double wishbones front and rear with adaptive damping and active hydraulic anti-roll stabilisation standard (so, no physical anti-roll bars).

At the same time the 4Matic AWD system is able to vary torque distribution up to 100 per cent to the front or rear axle depending on where drive can be put to best use.

The speed sensitive, variable ratio, electronically controlled steering is accurate and turns in beautifully with good road feel. No doubt assisted by electric rear steering able to adjust the angle of the rear tyres by up to 2.5 degrees.

All this adds up to a hugely impressive package that, despite its 1970kg kerb weight, feels agile, athletic and able to attack corners like an overgrown hot hatch, putting its power down with unwavering authority.   

While indecently fast the SL63 can also stop rapidly with the AMG high-performance braking system standard. 

Huge composite ventilated and cross-drilled discs (390mm fr - 360mm rr) are clamped by six-piston fixed alloy calipers at the front and single-piston units at the rear. They wash off speed calmly and consistently with perfect pedal feel.

Even at highway speeds, particularly with the windows up, normal conversation is easy with the roof down. But if you need to raise (or lower) it, the operation takes 15 seconds and is possible up to 60km/h. 

Under the heading of miscellaneous observations, the turning circle is a not insubstantial 12.8m, so beware in the car park.

A front axle lift function is a welcome standard feature, raising the car’s nose 30mm with the press of a button. And lift locations are stored in GPS data, so the car will subsequently remember to lift itself at the same place, even if you don’t! 

Heating and cooling for the front seats combined with the heated steering wheel and Air Scarf neck warming makes winter top-down driving a pleasure.

The digital instrument display is not only crystal clear, it can be changed through multiple configurations, including a tunnel-like graphic for engine revs as well as specific readouts for speed, g-force, the lot.

At the same time, the central media screen’s angle can be adjusted to better cope with reflections and the windscreen wiper system Merc calls ‘Magic Vision Control’ channels fluid along the wiper arms onto the rubbers, which isn’t new, but works spectacularly well here.  

Binging, bonging safety systems aside, the Deepal S07's drive experience is relatively peaceful.

It can feel heavy, and isn't dynamically perfect through tighter bends, and even in the city the suspension - which does a good job ironing out most road imperfections - can clang over sharper, bigger stuff, especially if you're too enthusiastic with a speed bump.

But provided you're not asking too much of it on some twisting pass, and you're gentle enough over really big bumps, the S07 behaves much as you'd expect a big, wafty electric SUV might.

That is, with a smooth flow of power, steering that isn't overly direct, but not overly sharp either and with comfort the order of the day.

There are some annoying quirks, though, that would seem easy enough to iron out. The safety systems are often intrusive – and other Chinese brands can get them to be far less annoying – but I also found the tech and user interface annoying and fiddly, which again would be easy enough to fix.

Handing out a low score for a five-star ANCAP car seems harsh, but bear with me.

All the major bases are covered, the standard spec including auto emergency braking (AEB) with car-to-car and 'vulnerable road user' (pedestrian, backover, cyclist, motorcycle) detection, blind-spot monitoring, lane-departure warning, lane keeping assist and more. And there are front, front side (chest), side curtain and front centre airbags.

But the single biggest drawback of the Deepal experience has to be the most annoying, infuriating active (crash-avoidance) safety systems I’ve ever come across. Honestly, it has to be experienced to be believed.

For one, whenever I wear sunglasses it gives me an “occlusion” warning, which I genuinely had to Google, but that’s nothing compared to the driver attention monitor, which seems rigged to go off if you so much as blink, sending chimes binging and bonging throughout the cabin, increasing in number like a bomb about to go off.

And if you have to turn them off every time you get in, you have to wonder if they have any business being there at all.

So yes, it wears a maximum five-star ANCAP rating from assessment in January this year, but it’s a tree falling in the forest, kind of vibe, like if a car has every active safety system known to man, and you want to switch them off every time you get in, is it any safer than a car that doesn’t have any systems at all?

The SL63 4Matic+ will be covered by Mercedes-AMG’s five-year/unlimited km warranty, with roadside and accident assistance included for the duration, both of which are expected in this category. 

Maintenance intervals are 12 months/20,000km, and a fixed-price service plan lists an average of $1583 for each of the first three visits to the workshop. Not exactly small change, but not unheard of in this part of the market.

The S07 is covered for seven years or 160,000km, while the battery is covered for eight years or 240,000km.

Servicing is required every 12 months or 10,000km, and the brand’s capped-price servicing program covers the first seven services (or eight, if you include the initial 5000km check-in, which is free), for a total $2981.43 (or an average of $426 per paid workshop visit).