Audi RS7 vs Audi A5

What's the difference?

The new-generation RS 7 Sportback heralds the further evolution of this large majestic beast, with more features, a beautifully finished cabin and with more grunt with the looks to match. You’d be hard-pressed to find a better combination of power, dynamics and comfort in the Audi range – apart from in the RS 6 Avant of course.

Predictably stylish, predictably competent, predictably comfortable. In fact, that predictability is among its only downsides. In short, the updated A5 might not move the needle all that much, but it didn't need much moving in the first place. 

The big news is the RS 7 Sportback now comes with five seats. The previous generation car had just two seats in the second row. I'll talk more on practicality below but for now let's examine the new styling.

This RS 7 Sportback has new broad, black mesh grille, flanked by gigantic side air intakes, narrow headlights, and a thin upper air inlet which is a hat tip to early racing Audis.

While that new angrier, more angular and menacing face is a showstopper, everything about the new RS 7 Sportback seems to be accentuated further.

Look at the wheels. The previous generation came with 21-inch rims, now the new normal for the RS 7 are 22-inches – they're huge. Those wheel guards also flare out 20mm more than a regular A7's and the rear haunches have bulked up massively.

Come to the back of the car and the diffuser and bumper have also been beefed up. Nobody sitting behind you in traffic is going to think this is just a regular A7.

Don't expect the RS 7 Sportback's insides to be just as hardcore as its exterior. The cabin is almost identical to a regular A7's. It's a stunning cockpit dominated by a dash which protrudes back towards the passengers and houses the media screen. Anther display for climate is set into the big centre console which divides the driver and co-pilot into almost cocooned cells.

The cabin isn't without its RS touches though – there's the sports seats with honeycomb stitching, fully digital instrument cluster with RS specific meters, the RS steering wheel, the Nappa leather on the dashboard and the doors, the aluminium inlays. The level of fit and finish is up there with the best that I've seen on any production car.

The RS 7 Avant is 5009mm long, 1424mm tall and 1950mm across for a wide planted stance.

It's gorgeous, the A5. There's simply no disputing it. It's elegant, sophisticated, and above all, restrained. There's no look-at-me chintz here, just clean lines, sharp creases and a shapely figure.

Like its A4 sibling, the A5 has been tickled at the front, with a new-look grille, along with a new headlight cluster with redesigned DRLs, and Matrix LED headlights. 

The four sharp bonnet creases that fan out from the grille lend the A5 a sense of speed, even when stationary, and we love the way the 19-inch alloys fill the wheel arches. It looks polished, premium and athletic. 

Inside, Audi's interior treatment is on-point, from the figure-hugging leather seats to the material choices that span the dash. The big news in the cabin is the inclusion of Audi's new 10.1-inch touchscreen perched above the dash, which isn't just easier to use (in my opinion, at least), but also removes the traditional controls from the centre console. 

It means Audi's already fuss-free cabin is even less cluttered, and it's definitely a change for the better. 

The previous RS 7 Sportback was a four-seater, now it has five seats. That's right, a middle seat has been added to the second row, but, as you'd expect, it's not the best place be in the RS 7 Sportback, straddling the large driveshaft and ducking under the low roof-line.

That fastback profile does mean headroom in the second row is nowhere near as good as the RS 6 Avant's, but legroom is the same and, at 191cm tall, I can just fit behind my driving position with about 10mm to spare.

Up front it's not as spacious as you might think. That stepped dash protrudes into the passenger's space, the door pockets are thin and the centre console storage under the armrest is small.

Sportbacks are more practical sedans thanks the large opening offered by the hatch. The boot's 535-litre cargo capacity is great and only about 30 litres less than what you have in the RS 6 Avant.

For phones there's a wireless charger and two USB ports in the centre console storage box, while back seat passengers have two USB ports and a 12V outlets. There's also directional air vents and dual-zone climate control in the rear, too.

It very much depends on the model you've opted for, with the Coupe compromising backseat space for exterior style. 

The Sportback is easily the most practical of the trio, what with its four doors, comfortable backseat and dimensions that stretch 4757mm in length, 1843mm in width and 1386mm in height, and its 480 litres of boot space.

The Coupe, then, is a two-door design, stretching 4697mm x 1846mm x 1371mm, with 450 litres of luggage space at the rear. It's long, the Coupe, but most of that space is absorbed by the front half of the cabin, wth the backseat reserved for kids. 

Finally, the Cabriolet (which we're yet to test) stretches 4697mm x 1846mm x 1384mm, and will deliver the lowest luggage capacity of the lot, at 375 litres.

Elsewhere, though, the A5 range delivers two cupholders up front, with another two in the centre armrest that can deploy to divide the rear seat. Rear-seat riders also get air vents with their own temp controls, USB charge points (joining the two up front) and bottle holders in the doors. 

For parents, you'll find a pair of ISOFIX attachment points in the backseat, too. 

The cheapest way into an A5 remains the Sportback or Coupe body styles, which will set you back $71,900 with the 40 TFSI engine choice. You can upgrade to the 45 TFSI quattro engine, but doing so will also up the entry point to $79,900. The Audi A5 Cabriolet sits atop the pile, costing $85,400 for the 40 TFSI, and $93,400 for the 45 TFSI quattro.

Happily, all A5s get the S line style treatment, gifting each a sportier look, with a new-look grille and venting adding to the performance-spec style up front. 

You also get 19-inch alloys, Audi drive select with five drive modes, three-zone climate (and neck-level heating in the Cabriolet), leather trim, matrix LED headlights, as well as tech-heavy interior highlighted by a new 10.1-inch touchscreen in the centre of the dash that controls the cars key audio, navigation and driving settings. 

Speaking of the Cabriolet, the three-layer acoustic roof opens in just 15 seconds at speeds of up to 50km/h, with a wind deflector also deployed to help with cabin ambience.

Audi's very cool Virtual Cockpit (a 12.3-inch digital display that replaces the traditional driver's binnacle) is also standard, as is Apple CarPlay and Android Auto. Audi says the new model offers 10x the computing power of the outgoing model, owing mostly to connected car features including live traffic, weather reports and fuel pricing, as well as the ability to remote unlock or lock you car from your phone, or pre-plan destinations and send them to the vehicle's nav.

The RS 7 may look like a large, well-mannered business class car, but think of it as a thug in a suit because this thing is a monster with a 441kW/800Nm twin-turbo petrol 4.0-litre V8.

That's almost 600 horsepower and the supercar acceleration that goes with it is brutal: we're talking 0-100km/h coming in 3.6 seconds. That also matches the RS 6 Avant and it's a tenth of a second faster than the Audi R8 V10 RWD supercar, (and also the previous-gen RS 7 Sportback Performance) and this is a large, four-door, five-seater.

Compared to the previous generation RS 7 Sportback Performance the power is down by 4kW, but torque is up by a whopping 100Nm. Give me torque over power any day.

Shifting gears is an eight-speed automatic transmission, sending the drive to all four wheels.

Two choices here, the slightly tongue-twisting 40 TFSI and  and 45 TFSI quattro, both of which make use of a 2.0-litre turbo engine tuned for different outputs. 

The 40 will serve up 140kW and 320Nm, and pairs with a seven-speed S tronic automatic that shuffles that power to the front wheels. Audi reckons you'll see 100km/h in as little as 7.3 seconds.

The 45, on the other hand, will give you 183kW and 370Nm, pairing with the same auto gearbox, but this time sending power to all four wheels thanks to the quattro system. The 100km/h sprint drops to 5.8 seconds at its fastest.

This is a large, all-wheel drive car with a 600 horsepower V8, but it also has a mild hybrid system in this new generation, which will switch the engine off at let the car coast down hills or at speeds under 22km/h.

Audi says this can save up to 0.8L/100km in real-life driving. That's great news, but consumption is still fairly high with Audi saying that after a combination of open and urban roads the RS 7 Sportback will have used 11.6L/100km.

Audi reckons the 40 TFSI engine will return 6.5L/100km on the combined cycle, and emit 148g/km of C02. The bigger engine increases fuel use to 7.1L/100km, but lowers the C02 output to 163g/km. Both those fuel numbers are taken from the Sportback.

Both engines also get a new 12V mild-hybrid system said to drop fuel use by up to 0.3L/100km.

Fun tank capacity is either 54 litres or 58 litres, depending on the model.

I've never met an RS model that hasn't been great to drive – these cars are way more than just tough body kits and big wheels. The engineering which separates the RS 7 Sportback from the A7 makes them more distant cousins than siblings.

As I mentioned before the RS 7 Sportback and RS 6 share more than the same twin-turbo V8, there are also the giant brakes in form of 420mm discs at the front with 10 piston calipers and 370mm discs at the rear.

The optional carbon ceramic brakes are the largest ever to be fitted to a production vehicle at 440mm at the front and 370mm at the rear, saving 34kg in mass over the steel brakes.

Now standard for the first time is Audi's Dynamic Package, which adds dynamic steering (a variable ratio) paired with all-wheel steering, a sport differential, and a 280km/h top speed.

Coming standard is adaptive air suspension and for $2850 you can option the Dynamic Ride Control suspension, which is a hydraulically activated adaptive damper system 

At the Australian launch, Audi supplied two RS 7 Sportbacks: one with the air suspension and the other with not only the Dynamic Ride Control system, but also the RS Dynamic Package Plus which adds the ceramic brakes and increases the top speed to 305km/h – this was the car I started off in.

I'm going to say right away that you don't need ceramic brakes for regular road use. Sure it means you can tell people that you have the biggest brakes in the world and they save you almost 35 kilos in weight, and, yes, they're resistant to fading, but they're expensive to replace and the steel ones are incredibly good.

I also feel the Dynamic Ride Control sports suspension isn't necessary in a car like the RS 7 Sportback. This is a Grand Tourer designed to eat up hundreds of miles at lightspeed in comfort.

So, while I found the first RS 7 Sportback with the big brakes and sports suspension sharper and firmer than the standard car, it didn't seem to fit with this vehicle's intent.

The regular RS 7 Sportback still accelerated with the same brutal force and roared at the scenery flashing past. It still handled through the tight corners superbly with excellent turn in, mind-boggling traction and grip, and excellent body control, but all in far more comfort.

This is the point – we covered hundreds of miles at the Australian launch of the RS 7 Sportback in a range of RS models, and sports suspension can go from great to gruelling on Aussie roads with their coarse-chip bitumen and potholes. The RS 7 Sportback, with its air suspension, not only made driving far more comfortable, but easier, too.

You'd describe the A5's drive experience as evolved, rather than revolutionary, but to be honest, in a vehicle this competent, that's no small thing. 

The hybrid tech is unnoticeable, and so the A5 delivers an on-the-road feel that isn't far away at all from the car it replaces. None are truly fire-breathing, but it feels comfortable and sophisticated, the outside world largely banished from the interior (though the firm-ish ride can send road imperfections into the cabin).

Audi has done a stellar job of making the A5 feel connected to the road below it, and the world around it, without dialling down the comfort factor. The steering, light in its normal setting but firming up as you cycle through the drive modes, is direct, but not twitchy, the ride is firm, but not uncomfortable, the engine (at least, the 45 TFSI we drove on launch) is capable without being ridiculous. 

The end result is a predictably competent drive experience, with the A5 delivering in the areas it should, largely before you even notice. 

The only downside to all of that, though, is that the experience is so predictable, that there are few surprises, positive or negative, thrown in. It can leave you feeling slightly disconnected from the experience, rather than truly engaged.

Now, a disclaimer, we spent limited time in the A5 on launch, so we'll wait until we get it in the CarsGuide garage before making a final verdict. But I'd be surprised if we liked it any less over a longer period.

Standard safety kit includes eight airbags, parking sensors front and rear, a 360-degree parking camera, adaptive cruise control with stop-and-go, rear cross-traffic alert, exit warning, and lane keep assist and lane change assist, along with a bevy of airbags, with the A5 range still wearing a five-star ANCAP safety rating.

The RS 7 Sportback is covered by Audi's three-year, unlimited kilometre warranty which not only falls behind in duration compared to mainstream brands but also its direct rival Mercedes-Benz which now has five-year, unlimited kilometre coverage. 

Service intervals are every 12 months or 15,000km with a three-year plan costing $2380 and a five-year plan for $3910.

All Audi's are covered by a three-year, unlimited-kilometre warranty, with servicing required every 12 months or 15,000km.

You can pre-pay your service costs for three or five years, which will set you back $1800 for three years or $2820 for five years.