Audi S5 vs Subaru WRX

What's the difference?

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.  

Over three decades the WRX has matured into a more grown-up, refined performance package.

It’s fast with excellent dynamics, yet comfortable. Safety’s top-shelf, it’s well screwed together and the value equation stacks up. Rear seat headroom could be better and service costs are on the high side for the category. But I just love the way this car puts you in control.

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.

For a while there in the mid- to late teens it felt like Subaru was pulling the wraps off a ‘VIZIV’-themed concept car design roughly once every five minutes.

Future-focused SUVs, crossovers and wagons, as well as 2017’s Performance Concept, a muscular four-door that clearly had an influence on the look and feel of this car.

From its sinister headlights and all-business hood scoop to the pumped-up flared guards with black 18-inch alloys filling them, the WRX’s intent is clear.

And at the back the professional-grade theme continues with dual twin exhaust tips, boot lid lip spoiler and what looks like a multi-vane diffuser that’s actually more cosmetic than functional.

That said, a low-key technical design feature is the integration of air outlets on the trailing edges of the front wheel arch flares and the outer edges of the rear bumper.

This is to release air pressure from the wheel arches, forming external vortices to minimise body sway and drift caused by wind turbulence.

Inside, the cabin treatment is a fairly busy mix of sharpish angles and shallow curves, the dash dominated by an 11.6-inch, portrait-oriented multimedia screen with a separate instrument pod for the driver next to it.

The colour palette is mid-grey to black with dark metallic highlights here and there, with alloy covers on all three pedals as well as patches of faux carbon on the doors and steering wheel.

Sports front seats look and feel good and the overall standard of fit and finish is high.

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.

At just under 4.7m long, a little over 1.8m wide and close to 1.5m tall, with a roughly 2.7m wheelbase the WRX stands as a ‘big’ small sedan.

At 183cm I’ve got more than enough breathing room in the front, the away slope of the dash enhancing the feeling of space.

For storage, there’s lots, including a centre console box between the seats, two cupholders and some oddments trays in the centre console, door pockets with room for decent size bottles and a medium glove box

And in the back, sitting behind the driver’s seat set to my position, there’s good foot room, ample legroom, but sitting straight I experienced a bonce-to-roof interface in terms of headroom. No adjustable ventilation, either. Thumbs down.

Storage options include door bins with room for bottles, a single map pocket (on the back of the front passenger seat) and two cupholders in the fold down centre armrest.

Power and connectivity runs to a 12V socket in the front as well as USB-A and -C sockets for charging and/or media.

Plus two USB charge ports (again -A and -C) in the back, the latter a model year 2024 spec upgrade.

The WRX’s boot offers 411 litres of storage space, which is enough to accommodate our three-piece luggage set, but remember, the aperture isn’t as accommodating as a hatch or SUV’s. The 60/40 split-folding rear seats improve flexibility, though. 

A space-saver spare sits under the floor and braked trailer towing capacity is a handy 1200kg.

The Subaru WRX RS weighs in at $52,990, before on-road costs, and the RS Sport with CVT auto is a fraction below 55 and a half thousand dollars.

There are some tasty alternatives around that price band, including the Toyota GR Yaris ($51,390), Mazda MX-5 GT RS ($51,640) and Mini Cooper S Clubman Classic ($53,250).

But maybe the most telling competition is closer to home with the less powerful but even purer Subaru BRZ tS ‘2+2’ manual coupe undercutting its WRX RS sibling by more than four grand at $48,690, before on-road costs.

Either way, aside from the standard performance and safety tech we’ll get to shortly, this car boasts an impressive features list including dual-zone climate control air, eight-way power-adjustable and heated sports front seats, heated outboard rear seats, interior ambient lighting, synthetic suede seat trim, built-in sat-nav and an 11.6-inch portrait-oriented multimedia screen (with voice command).

There’s also 10-speaker Harman Kardon audio (with digital radio and 265mm subwoofer), wireless Android Auto and Apple CarPlay, keyless entry and start, a leather-trimmed steering wheel, adaptive cruise control, a sunroof, exterior LED lighting all around, ‘Steering Responsive Headlights’, rear privacy glass and 18-inch alloy wheels. 

Relative to its asking price and closest competitors this WRX RS delivers plenty of bang for the buck when it comes to performance and value.

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. 

The WRX RS is powered by a 2.4-litre, horizontally opposed four-cylinder, turbo-intercooled petrol engine developing 202kW and 350Nm.

Some call it ‘flat’, others a ‘boxer’, but either way it’s the Rex’s mechanical calling card delivering its distinctively raucous, pulsing engine and exhaust sound.

The all-alloy unit features direct-injection and dual variable valve timing, its relatively flat design lowering the car’s centre of gravity significantly. 

And as mentioned earlier, in this case it’s connected to a six-speed manual gearbox driving all four wheels via a centre viscous limited slip differential able to distribute drive between the front and rear axles on demand. But you can have a CVT auto if you really want one in the RS Sport. 

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.

Subaru’s official combined cycle fuel-economy figure for the WRX RS is 9.9L/100km, which is moderate for a performance sedan like this. And it emits 225g/km of CO2 in the process.

Over a week covering mainly urban and suburban driving, with some enthusiastic sessions and a hint of freeway running thrown in, we recorded an average of 10.6L/100km, which isn’t outrageous.

Worth noting the minimum fuel requirement is the pricier 95 RON premium unleaded and you’ll need 63 litres of it to fill the tank which translates to a theoretical range of around 635km and roughly 595km using our real-world number.

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.

In driving the first Subaru Impreza WRX when it launched here in the early 1990s, the first attempt to control its surging, decidedly non-linear acceleration felt like pulling back on the reins of a bolting horse.

Subaru was in the thick of its commitment to the World Rally Championship (WRX stands for ‘World Rally eXperimental’) and the Japanese maker had a red hot product on its hands.

Fast forward to the 2024 version and the turbo torque still arrives with something of a rush but this is an infinitely more refined performance sedan than its relatively raw ancestor.

Subaru doesn’t quote a 0-100km/h figure but expect it to come up in the high five-second bracket and with maximum torque available all the way from 2000–5200rpm (and peak power taking over at 5600rpm) there’s always plenty or urgent acceleration available.

And that pulsing engine noise and percussive exhaust beat is still there in a no less distinctive and entertaining way. Our test car was fitted with the newly optional STi-branded exhaust ($2497, fitted) which adds to the aural impact. 

The gearshift isn’t ‘click-clack’ direct but it’s smooth and positive and the clutch is perfectly weighted. Such a pleasure to swap through the ratios, with a bit of old school heel and toe action thrown in for downshifts. Love it.

Subaru says the ‘Global Platform’ underpinning the WRX features a “full inner-frame construction” making it “14 per cent better in terms of front lateral flexing rigidity and 28 per cent stiffer torsionally” than its predecessor.

Suspension is strut front, double wishbone rear, which is a relatively sophisticated configuration allowing the WRX RS to combine impressive ride quality with excellent dynamic response.

The 245/40 Dunlop SP Sport Maxx rubber grips hard and steadfastly refuses to squeal or squirm in ‘press-on’ cornering, the AWD system defaulting to a nominal 45/55 front/rear torque split to deliver an initial rear-drive attitude with active torque vectoring helping to keep any pesky understeer in check. 

Push even harder and the system seamlessly adjusts the balance. And to top it off, the steering is great; accurate with good road feel.

Despite an alloy bonnet and front guards (even the fuel flap is resin) the WRX RS weighs in at 1482kg. That’s solid without qualifying as chonky, and it still feels nimble, responsive and balanced, helped in no small part by the boxer engine lowering the car’s overall centre of gravity.

The WRX has copped some criticism in the past about its braking performance under intense pressure. And while we didn’t hammer the RS around a race circuit we did repeatedly apply full-force to the centre pedal without any noticeable reduction in effectiveness. 

For the record, the system uses ventilated discs all around (290mm fr / 316mm rr) with dual-piston front calipers up front and singles at the rear. In everyday use the pedal is agreeably progressive.

Under the heading of general, mainly ergonomic, observations, the driver display may not be full digital but the 4.2-inch multi-information display in the centre of the instrument cluster delivers a healthy amount of relevant information clearly and simply.

At 11.2 metres the turning circle is okay, while vision for parking, supported by a high-def reversing camera is good. And applying the manual park brake is another reminder of the physical nature of this car.

The WRX is “unrated” by ANCAP (it’s maximum five-star rating timed out in 2022) but for the 2024 model year the RS manual picks up Subaru’s ‘EyeSight’ active (crash-avoidance) safety suite including features like AEB, adaptive cruise and more assists, warnings and alerts than you could poke a crash test dummy at.

Specifically, ‘Emergency Lane Keep Assist’, lane centring, ‘Lane Departure Prevention’, ‘Lane Departure Warning’, ‘Lane Sway Warning’, ‘Lead Vehicle Start Alert’, driver monitoring, rear cross-traffic alert, ‘Pre-collision Braking System’, ‘Pre-collision Brake Assist’, ‘Brake Light Recognition’, ‘Speed Sign Recognition’ and tyre pressure monitoring.

If an impact is unavoidable, there are seven airbags onboard, including full-length side curtains and a front centre bag to minimise head clash injuries in a side-on crash.

There are three top tether points and two ISOFIX anchors for child seats/baby capsules across the rear seat. 

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.

Subaru covers the WRX with a five-year, unlimited kilometre warranty, which is still the norm in the mainstream market, although more than a few brands are stepping up to seven years.

The main service interval is 12 months/15,000km, also on par with the market and (five-year/75,000km) capped-price servicing is available.

Average is just under $535 per workshop visit, which is on the high side but maybe to be expected for a highly-tuned car like this.

That said, Roadside Assist is complimentary for 12 months, which is a nice sweetener.