Audi RS5 vs Audi S5

What's the difference?

It's hard to look past the fact that the RS 5 Sportback is more than $50k more expensive than an S5 Sportback, which itself is hardly cheap. But is it the pick of the RS 4 and RS 5 family? Probably, but I’m personally still a sucker for the RS 4’s wagon shape

I also reckon it’s currently the pick of the three fast German options, and I love that you can get it in this bodystyle.

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

The S4 and S5 range continues to represent a great formula for performance you can live with every day. They're arguably the sweetest balance Audi produces, actually. All come fantastically equipped, with cabins that feel truly special, and we’re lucky they can be had in a choice of five bodystyles.  

From the B-pillar forward, the RS 5 Sportback is identical to the Coupe, with the same deep and aggressive front apron to set it aside from the lesser S5 and A5 models. The same applies at the rear, with a bespoke rear bumper with large oval exhaust outlets on either side.

It also scores the delightfully pumped wheelarches on each corner of its mechanical siblings, along with the same 20-inch wheels.

Like the coupe though, one detail that seems to be missing from the previous RS 5 is a significantly wider track. Compared with the S5 Sportback, the RS 5 Sportback’s track is just 11mm wider at the front and 20mm at the rear, so if you halve those figures per side they’re likely just from additional camber in the wheel alignment settings.

So those wheelarch blisters are largely for aesthetics, rather than a necessary adjustment to allow for a broader stance.

Enough of the comparisons though, the five-door liftback bodystyle gives it a uniquely sleek yet practical appearance, with all of the tasty performance cred of the coupe and wagon.

Also as I alluded before, BMW is unable to build you an M4 Gran Coupe, which would be its BMW equivalent, due to the regular Gran Coupe being built in a different factory to the 3 Series sedan and 4 Series coupe. And Mercedes-AMG’s C 63 bodystyle options are limited to sedan, coupe, wagon and convertible - there just isn’t a five-door liftback on the list.

The RS 5 Sportback’s interior is a continuation of the beautifully detailed coupe and wagon, with real carbon fibre, aluminium and leather tastefully applied leather that has a subtle edginess that really fits the Audi RS brand.

The S4 sedan and Avant have scored the bulk of design updates, with all new and recontoured side panels including the sedan’s C-pillar matching what was applied to the A4 earlier this year. 

This is paired with new front and rear facias and lighting for a subtle but extensive rework of the fifth-generation S4’s conservative look. 

The S5 Sportback, Coupe and Cabriolet get S5-specific new lighting and facias, but no sheetmetal changes. As before, the Coupe and Cabriolet ride on a 60mm shorter wheelbase than the Sportback, sedan and Avant.

The S5s also get Matrix LED headlights as standard which do a neat animated sequence when you unlock the car. 

Other visual hallmarks include new S4-specific 19-inch wheels, with S5 stepping up to its own unique 20-inch wheel. The six-piston front brake calipers are appropriately painted red, and there’s S-specific adaptive dampers under there too. All variants aside from the Cabriolet get a lip spoiler on the rear.

On the inside, there’s a new centre console and bigger 10.1-inch multimedia screen, while the Audi Virtual Cockpit driver instrument display now offers a hockey stick-style rev counter in additional to traditional dial layouts.

This is where it’s hard not to make Goldilocks analogies. Where the RS 5 coupe has a decent boot with a small, sedan-like opening and a back seat for two that’s difficult to access via the front doors, the RS 4 has a great wagon boot with a huge opening and a back seat for three that’s easy to access because it has back doors.

The RS 5 Sportback is closer to the latter, but sacrifices the cargo height of the wagon and the sloping roofline will mean that taller passengers may want for more headroom and easier access to the back seat. It does retain the wagon’s third seating position back there though, and neither back seat compromise is an issue for my 172cm height.

Its 480 Litres VDA seats-up boot capacity is a match for the S5 Sportback, which is only 25 litres short of the RS 4. Like the S5, a space saver spare sits beneath the boot floor.

The RS 5 Sportback also ticks important convenience boxes like dual cup holders front and rear, bottle holders in each door, decent oddments storage and auxiliary connections front and rear, plus ISOFIX child seat mounts for both outward rear seat positions.

The biggest practicality change among the five S4 and S5 variants is their upgrade to the latest version of Audi’s MMI multimedia system, which steps up to a 10.1-inch touchscreen and drops the scroll wheel from the centre console.

It also boasts ten times the computing power of the version it replaces and uses this and an on-board sim card to access Google Earth maps for navigation and Audi Connect Plus that offers driver information such as fuel prices and parking information as well as point of interest search and weather information, plus the ability to make emergency calls and seek roadside assistance.

There’s also a wireless phone charger, but using Apple CarPlay will still require a cord as per Android Auto.

I only drove the S4 Avant and S5 Sportback at their media launch, which are clearly the most practical of the five, but from our experience with the previous versions, each looks after its occupants well in terms of space and storage. Back seat accommodation is clearly not a priority in the Coupe and Cabriolet, but there’s three other variants if that’s what you’re looking for. 

The Cabriolet can open its automatic folding soft top within 15 seconds, at speeds of up to 50 km/h.

As I mentioned above, the S4 and S5 line-up are in many ways the same, but also different, and these differences result in a price span of $20,500 between the S4 sedan and the S5 Cabriolet. 

The former is now $400 cheaper with a list price of $99,500, with the also-$400 cheaper S4 Avant not far beyond at $102,000.

The S5 Sportback and Coupe are now $600 more expensive at an equal list price of $106,500, while the swish folding soft top of the S5 Cabriolet pushes it up to $120,000 (+$1060).

Equipment levels are consistent across all five variants aside from the S5s getting Matrix LED headlights as standard and one inch larger 20-inch wheels. 

Key details include Nappa leather trim with front sport seats with seat heaters and massage function, a Bang & Olufsen sound system which spreads 755W across a total of 19 speakers, brushed aluminium inlays, head-up display, coloured ambient lighting, tinted windows and metallic paint.

Over the past 12 months, the S5 Sportback has proven to be the most popular of the five variants by far, accounting for 53 per cent of sales, with the S4 Avant next in line at 20 per cent, the S4 sedan making up 10 per cent, and the S5 Coupe and Cabriolet combining to make up the remaining 17 per cent.

The RS 5 Sportback is a genuine mechanical match for the coupe and RS 4, which means the same and impressive 331kW/600Nm 2.9-litre twin-turbo V6 and delightfully adaptive eight-speed ZF torque converter auto.

Max power is available from 5700-6700rom, while peak torque is accessible all the way from 1900-5000rpm.

The Quattro all-wheel drive system retains it 60 per cent native torque bias for more of a rear-drive dynamic. 

Audi has taken an ‘if it ain’t broke’ approach with the mechanicals, with all S4 and S5 models unchanged with this update. So the centrepiece continues to be the single-turbocharged 3.0-litre V6 that produces 260kW and 500Nm, with the latter available from a broad 1370-4500rpm.

The rest of the drivetrain is also unchanged, with the venerable but excellent ZF eight-speed torque converter auto paired with the Quattro all-wheel drive system that can send up to 85 per cent of drive to the rear wheels. 

Given the familiarity of the RS 5 Sportback’s mechanical package, there’s also no surprises with its fuel consumption.

The official combined fuel consumption figure is 8.9L/100km, which is 0.1 more than the coupe, and the same as the RS 4.

We managed a rare feat during our 350-plus kilometre drive taking the back way from Canberra to Goulburn, to Oberon, then to Bathurst via Lithgow, where we managed to match the official combined figure on the car’s trip computer.

While it’s a good rule of thumb that you can do this on a steady motorway cruise, it was mighty impressive to do it along the flowing country route with regular climbs and overtaking.

It is worth noting though that like all RS models, the RS 5 Sportback commands expensive 98 RON Premium unleaded as a minimum.

Official combined fuel figures range from 8.6L1/00km for the S4 sedan to 8.8L/100km for the Avant, Coupe and Sportback, while the heavier Cabriolet steps up to 9.1L/100km. 

All are pretty good considering their performance potential and the size of these cars, plus the fact that they only require 95 RON Premium Unleaded fuel.

All have a 58-litre fuel tank, which should enable a range of at least 637km between fills based on the Cabriolet’s figure.

There’s a good chance you’ve skipped straight to this point, and if you've driven the excellent RS 5 Coupe or the RS 4 you won’t find any surprises in the RS 5 Sportback. This is a very good thing.

Compared to its muscular looks, its general refinement around town is still a really nice surprise for a car of this performance calbre. It’s not hard to imagine driving your grandmother around in comfort. In fact, she would have been right at home on our 350-plus kilometre country cruise between Canberra and Bathurst. 

You might miss the V8 growl from an AMG, but the V6 does make a nice bark once you give it some decent throttle, and it delivers those 331kW and 600Nm very effectively through those two turbos. As I often find myself saying these days, this thing is so easy to drive so fast!

Its very impressive 3.9 second 0-100km/h claim feels entirely realistic, which matches the coupe and trumps the RS 4 by two tenths.

You probably won’t be surprised to hear that the ZF eight speed torque converter auto feels right at home with the RS5, being smooth as around town, and as responsive and quick to shift as you’d ever want it to be when you’re getting up it.

Its overall refinement does mean it’s not quite as exciting to drive fast as the AMGs or BMW Ms, even with the controls and mechanicals tightened up in Dynamic mode.

Our best opportunity to put it through its performance paces was via the surprise set of bends hidden between Bathurst and Sofala, where it simply honked its way uphill. You instantly forget that it's a rather large five seater with almost room for a pony in the boot. There’s miles of grip, it steers really nicely and the big brakes do a really good job under pressure. This, is a proper RS.

The S4 and S5 range were already an excellent balance between everyday comfort and a genuine sporting edge, and nothing has changed with this update.

I spent time behind the wheel of the S4 Avant and S5 Sportback at their media launch, and both managed to deliver the proper Audi luxury experience over some pretty rough rural roads, while always feeling a bit more sporting than a regular A4 or A5. That’s with the Drive Select left in the default mode, but you can shift that sporting personality up a few notches (while scaling back the comfort), by selecting Dynamic mode. 

My preferred means of adjusting their personality is by simply tugging the transmission selector back to activate S mode, which livens up the engine and transmission without stiffening up the suspension. 

Across the five S4 and S5 bodystyles, there is some variance in performance potential, with the S4 sedan and S5 Coupe topping the performance chart with 0-100km/h boasts of 4.7s, with the S5 Sportback trailing them by 0.1s, the S4 Avant by a further 0.1s and the Cabriolet managing a still-fast 5.1s claim.

Another area I consider the S4 and S5s to get just right is their exhaust note. It is adaptive, but there’s nothing synthetic about it, and the generally muted and distinctly V6 burble is always there to remind you that you’re aboard a proper performance model, but not in such a way that it will annoy you, or your neighbours. Polite performance, if you will.

All S4 and S5 variants boast an impressive array of safety features, but there’s some interesting points when it comes to ANCAP ratings. Only four cylinder A4 models (therefore not S4) were given a maximum five star rating when tested according to less stringent 2015 standards, but all A5 variants (therefore S5) aside from the Cabriolet carry a five star rating based on the tests applied to the A4. So officially, the S4 is not rated, but the S5 Coupe and Sportback are, but based on the A4 rating that doesn’t apply to the S4. As with most convertibles, the Cabriolet is simply not rated. 

The airbag count totals eight in the sedan, Avant and Sportback, with dual front airbags, plus side and curtain airbags covering front and rear.

The Coupe drops the rear side airbags, while the Cabriolet also drops curtain airbags, meaning there’s no airbags for rear seat occupants. The roof is made of folding fabric, there has to be some safety compromise.

Other safety features include front AEB that works up to 85km/h, adaptive cruise control with traffic jam assist, active lane guidance and collision avoidance assist that can automatically swerve, a 360 degree camera system, rear cross-traffic alerts, exit warning that can prevent you opening a door into an oncoming car or cyclist, and pre sense rear that can detect an impending collision from behind and prepare the seatbelts and windows for maximum protection.

Like all Audis, the new RS 5 Sportback is covered by a three year, unlimited kilometre warranty. This is short of the five year-plus periods that now form the status quo among mainstream brands, but equal to the terms offered by BMW and Mercedes-Benz. Lexus differs by offering a four year, 100,000km plan. 

RS 5 Sportback service intervals are a generous 12 month/15,000km though. 

Another detail to be aware of is that RS models are still exempt from Audi’s Service Plan Pricing capped price servicing plan.

Audi continues to offer a three year, unlimited kilometre warranty, which is in line with BMW but lags behind the five years offered by Mercedes-Benz these days. This also contrasts with the five year norm among mainstream brands, which is punctuated by the seven year warranties of Kia and SsangYong.  

Service intervals are a convenient 12 months/15,000km though, and the same five year ‘Audi Genuine Care Service Plan’ offers capped price servicing for the same $2950 total over five years applies to all S4 and S5 variants. This is only marginally more than the plans offered for regular petrol A4 and A5 variants, so you’re not being stung for the thoroughbred versions.