Audi S4 VS BMW Alpina B7
- Understated looks
- Goes like stink
- Overly heavy steering in Dynamic mode
- Tyre roar on some surfaces
- Can feel a bit computer-driven
BMW Alpina B7
- Supremely comfortable ride
- Luxurious cabin
- Supercar-scaring 330km/h top speed
- Exhaust note could be tougher sounding
- Extra care needed to pilot through car parks and alley ways
- Australia's speed limits
Peter Anderson road tests and reviews the new Audi S4 sedan and Avant, with specs, fuel consumption and verdict at its Australian launch between Bathurst and Canberra.
Sometimes year a year flashes by and it's almost a shock to realise that Audi's B9 A4 has been with us here in Australia for almost that long. Performance buffs have had to wait for the first quick version of the A4 while the Allroad was rolled out, but here we finally have the first Audi Sport variant in the line-up - the S4.
As with the standard A4, there's a stack of new stuff and a stout standard specification list along with technical packages. There's one big piece of news, too - it's the first S4 to land with a price tag under $100,000.
|Fuel Type||Premium Unleaded Petrol|
BMW Alpina B7
You know when you're walking along the footpath and you come to a soft spongey bit that the council have put in around a tree and your mind goes: "Whoah, the ground is bouncy but it looks just like bitumen?!"
Well that's the kind of response you'll get from people when they think they're looking at a regular BMW 7 Series, only to have their world go a bit bouncy when they see the Alpina B7 badge on the back of this car as you're overtaking them at Warp Factor 9000.
And you will be overtaking them like a blur because, thanks to the elves at German tuning house Alpina, the B7 is hugely fast for a five-seat, 5.3m-long, 2.2 tonne limo. But then the B7 is fast for any type of car of any dimensions, because with its 330km/h top speed this beast will outrun a McLaren 570GT. Yes, seriously.
Based on the BMW 750Li long wheelbase, the B7 begins life rolling down the same production line as a regular 7 Series. Alpina then goes on to make so many changes to the engine and chassis that the German government requires the BMW VIN to be replaced with a new one.
Ready to find out more? Well there's so much to see here that things may go a bit weird and bouncy again. Be prepared.
|Engine Type||4.4L turbo|
|Fuel Type||Premium Unleaded Petrol|
It's not an exuberant machine and you can tell there's still a ton of room for the inevitable RS4 mean machine to go after the BMW M3/M4 and AMG C63. That means, however, that the S4 is a proper sleeper. Hardly anyone will notice what it is until they're eating your fumes while you whisk yourself away in (mostly) quiet and comfort.
The new S4 is lighter, slightly faster and more technologically advanced than its predecessor, while bringing the A4's charms to the go-faster part of the executive sedan segment. This one will rattle a few cages.
Audi S4 Sedan and Avant Specifications
List price: $99,900 (Sedan) / $102,900 (Avant)
Fuel Consumption: 7.7L/100km (Sedan) / 7.9L/100km (Avant)
CO2: 175g/km (Sedan) / 178g/km (Avant)
Fuel Tank: 58L
ANCAP: 5 stars
Warranty: 3 years/unlimited km
Service Interval: 15,000km or 12 months
Engine size: 2995cc
Fuel Type: PULP
Transmission: 8-speed automatic
Spare: space saver
Turning Circle: 11.6m
Length: 4745mm (Sedan) / 4745mm (Avant)
Width: 1842mm (Sedan) / 1842mm (Avant)
Height: 1404mm (Sedan) / 1411mm (Avant)
BMW Alpina B77.9/10
The BMW Alpina B7 is a special car destined (like all Alpinas) to be a collector's item, due to its rarity and exclusivity. I asked Alpina just how many current model B7s there are in Australia and the answer was "less than five", which is just as mysterious as most people find the car in general.
The B7 is fast – too fast to enjoy legally on Australian roads – but it is also supremely comfortable and well appointed. For Alpina fans lucky enough to be driven in on,e this would make for a truly rare and niche way to be chauffeured.
Is the BMW Alpina B7 the ultimate fast limousine? Tells us what you think in the comments section below.
Audi tells us that S4 owners don't like to shout about their purchase, which is just as well, because the S4 looks like a very mildly gussied up A4. That means the same sharp looks as the A4 but lower, 23mm to be exact. The standard 19s make it look lower still but all the standard A4 cues are there. This has been covered at length already, but just to be sure, every inch of the car is new, it just looks a lot like the old one.
Get up closer, though, and you'll see the serrated shape of the headlight, the clamshell bonnet and shutlines tighter than Scott Morrison on Budget night when it comes to funding hospitals. Audi says the body kit is aggressive but I think it's safe to say that the drug of choice at Audi's styling bureau is chamomile tea - it's fairly restrained, with just a few details (including a slightly daggy V6T badge on the front guards) to mark it out.
Inside is standard A4, too, with plenty of leather (both real and man-made), with some extra zing in the form of carbon and aluminium bits.
It's as roomy and comfortable as the standard car and looks just as good. It's a fine interior, the best in its class.
BMW Alpina B77/10
This is a good place to start because the B7 looks just like the 750Li it's based on, until you see the first tell-tale signs that it's not one.
There's the front wing with Alpina lettering and the boot-top spoiler, the graphics, which run the length of the car, and the 20-spoke wheels with Alpina badging.
This is late '70s, early '80s styling at its best (and possibly worst), but these special cars can pull off the irony-free look because this is how Alpina BMWs have rolled since 1975, when the E21 320-based Alpina A1/3 was launched.
BMW badges have been left on the bonnet and boot, but there's Alpina B7 BiTurbo lettering in place of the 7 Series identifier.
Most people walked by it in the street thinking it was just a big BMW, others scratched their heads wondering what I'd done to my big German limo and a handful almost dropped to their knees in praise and wonderment at spotting a rare beast like this in the wild.
These people all had their own Alpina stories – one was the third generation of an Alpina-owning family. You become a member a small and passionate club when you buy into this rarefied brand.
The standard B7's cabin is close to identical to the luxurious interior of the 750Li, save for Alpina-embossed stitching in the headrests of the soft, leather seats, the virtual instrument cluster and the Alpina plaque on the centre console denoting the build number.
The B7 is long, low and wide at just under 5.3m end to end, 1.5m tall and 1.9m across. A 3.2m wheelbase means cabin room is more than just spacious.
The B7 rolls off the Dingolfing production line in Germany and is then handed over to Alpina's facility in Buckle, where significant changes take place. Read on to find out how the B7 is different from a regular 750Li.
The S4 has four bottle holders, cupholders front and rear for a total of four and various slots and spots for phones and keys in the front while the rear is a little less accommodating of bits and pieces.
The sedan's boot is the same as the rest of the A4s (and mid-size Germans) at 480 litres while the Avant bumps that up to a 505 litre minimum and a 1510 litre maximum when you drop the seatbacks.
BMW Alpina B78/10
The B7 is a five-seater limousine although with the fold-down rear centre armrest which houses the media control panel the back is really set up to carry two.
That 3.2m wheelbase means cabin space is enormous. At 191cm tall I can sit behind my driving position with about 30cm between my knees and the seatback. Those rear doors open wide and the entrance is huge, making entry and exit almost as easy as just walking through a doorway. The air suspension also rises and lowers the B7's ride height for better access.
Storage is excellent, with two cupholders and door pockets for rear passengers, along with the area inside the centre armrest.
Up front, the driver and co-pilot have a deep centre console storage bin with split-opening lid, two cupholders and door pockets.
Luggage space is good, with a 515-litre boot.
Price and features
The S4 is available in two versions - sedan and Avant wagon. The sedan opens the bidding at $99,900 and the Avant closes it at $102,900. Both come with identical specifications and are available with much the same options. For a bit of pricing perspective, the first S4 was an Audi 100-based five-cylinder turbo that landed with a price tag of $132,000. In 1993.
The S4 has arrived with 19-inch alloys, adaptive dampers, around-view camera, reversing camera, up-spec sat nav, adaptive cruise control, auto parking, auto headlights and wipers, high beam assist, keyless entry and start, electric tailgate (Avant only), heated folding electric mirrors, LED headlights, dynamic scrolling rear indicators, electric heated sports front seats, leather and Alcantara trim, three-zone climate control and interior LED lighting.
A ten speaker stereo is powered by Audi's MMI rotary dial system and the same 8.3-inch screen as the rest of the A4 range, which also means you get Apple CarPlay and Android Auto as well as two USB ports in the centre console to go with the Bluetooth. There's also a DAB+ digital radio.
Audi's Virtual Cockpit is standard and has an additional S mode which switches the dial view for a big tacho and a huge digital speed readout.
Being an Audi, you can get a collection of options in packs. The S Performance Package ($5900) adds an excellent pair of massaging S sport front seats with diamond stitching and Nappa leather, red brake calipers, more (synthetic) leather and carbon inlays in the interior.
The Technik Package adds the excellent matrix LED headlights, the 19-speaker B&O 3D sound system and a heads-up display.
Other options include variable ratio Dynamic Steering ($2210), quattro sport differential ($2950), premium paint (ahem, $1846), panoramic sunroof (Avant only, $2990), sunroof ($2470, sedan only), heated rear seats ($750) and the rear seat entertainment system ($2600-$4680 for one or two screens respectively, but you can't have it with the S Performance pack)
BMW Alpina B77/10
The B7 lists for $389,955, while a 750li is about $319,000. At this level, $70K seems like a downright reasonable premium to pay for a faster, more powerful, better handling and comfier version of the 750Li.
In this case you're paying more but getting more, although standard features are close to identical. There's adaptive LED headlights, head-up display, night vision with pedestrian detection, a 10.25-inch touch screen up front and two screens in the second row for TV and other media functions.
There's a reversing camera, sat nav, harman/kardon surround stereo and Apple CarPlay. There's leather upholstery, seat massagers in the front and rear, four-zone climate control, heated and ventilated front and rear seats, front and rear parking sensors, auto tailgate, sunblinds for the rear and rear-side windows and proximity key.
The safety features are listed in the section below, and that list is also impressive.
Engine & trans
Audi says the turbocharged V6 is brand new from the ground up. Developing 260kW (15kW up) and a nice round 500Nm (up 60Nm), the new engine is 14kg lighter than the supercharged unit it replaces, and more efficient.
Efficiency gains come from clever things like a "hot side inside" turbo placement (inside the V, meaning shorter exhaust paths to better turbo pressure), lift-off coasting and start-stop.
Power reaches the road via an Audi Sport tweaked quattro system which can send 85 percent of power in either direction and is rear-biased with a standard 60/40 rear/front torque split. The seemingly ubiquitous and always excellent eight-speed ZF transmission handles the job of getting the power from the engine to the road.
The standard self-locking centre diff can be flung and replaced with a trick quattro sport unit ($2950) with electro-mechanical control of the rear axle's torque split.
The sedan will rocket to 100km/h in 4.7 seconds, the slightly heavier Avant two tenths behind it.
BMW Alpina B79/10
Alpina takes the 4.4-litre twin turbo V8 from the BMW 750Li and rebuilds the engine by hand. Alpina fits its own turbochargers, air-intake set -up, high-capacity cooling system and Akrapovic quad exhaust. Output is 447kW and 800Nm – an increase of a whopping 117kW and 150Nm over the 750Li's grunt.
It's interesting to note that the V12-powered 760Li has a smidge more power, at 448kW, and the same torque output as the B7.
How fast is the B7? Supercar fast – the B7 has a top speed of 330km/h, which will see it outrun a McLaren 570 and almost keep up with a Ferrari F12. That's quite incredible for a 2.3-tonne limousine with three TVs on board. A 0-100km/h time of 4.2 seconds is also hugely impressive.
In comparison, a 750Li has a 0-100km/h time of a not-too-shabby 4.7 seconds, but the car is electronically limited to 250km/h.
An eight-speed automatic transmission shifts gears smoothly, although a little slowly in Normal mode, while Sport and Sport+ add urgency and harder shifts.
Finally, the B7 is all-wheel drive, and those rear wheels are designed to steer slightly for better cornering performance.
Audi claims 7.7L/100km from the sedan and 7.8L/100km for the Avant. On a stinking hot day in central NSW and the ACT and with the accelerator spending a lot of time carpet-bound, the S4 still returned around 12L/100km. More time being driven less enthusiastically should see a marked improvement.
BMW Alpina B77/10
The B7 is probably not the car to own if you're concerned about either fuel prices or emissions, but then the twin-turbo V8 may not be as thirsty as you'd think, with Alpina stating that, after a combination of urban and open-road driving, you should only use 9.6L/100km.
My time in the B7 saw me double that usage but this could have had something to do with me turning off the stop-start system and driving in Sport mode constantly.
The S4 is terrific fun. It's that simple. The new engine is an absolute belter, with all 500Nm of torque available at just 1370rpm. Lag is almost indistinguishable as the turbo spools up and rockets you along to 100kmh in under five seconds, that huge half-ton of torque sweeping you down the road.
With dynamic mode switched on, the car muscles up with firmer suspension and a slightly growlier exhaust. The steering really weights up, too, which takes a little getting used to after the lighter, friendlier setting in Comfort mode - thankfully you can set up an individual mode to dial the assistance back in while everything else is set up for go-fast.
The key to the fun is the rear-biased quattro system - while it's never going to match the purity of BMW's rear-wheel drive 340i, what you lose in steering feel and ultimate adjustability, you gain in off-the-line and mid-corner grip its German rivals could only dream of.
Going fast in an S4 is easy, leaving you to concentrate a little more on your line and gear selection, listening to the distant bark of the engine and the occasional turbo whistle. All of this is purely down to driving taste, of course but the point is, the S4 offers something a little different to the other two.
For most of the time the S4 defies its 1700kg-plus weight but there is the occasional hesitancy when changing direction through a challenging set of bends, as though the front tyres (245s all around, if you're interested) want to scrub and the quattro system makes a quick adjustment to stop it happening. You don't feel that's what's happening, of course - Audi Sport is better than that - but it's part and parcel of all-wheel drive. It takes a lot to find understeer and for most people, that just won't ever happen.
Further confidence comes from the terrific brakes - 350mm up front and 330mm at the rear, the big forward rotors are gripped by six-pot fixed calipers. Performance is epic and in hard, fast driving they stood up to a fair amount of punishment without fading.
The ride is excellent in all modes, which is quite an achievement given the fat rubber and big wheels, although big bumps at speed make a huge metallic thunk without actually upsetting progress. The eight-speed ZF is brilliant as always and unless you're really motoring, you don't even need its sport mode, which brings impressively fast and positive shifts.
The best thing is, if you don't look in the rear vision mirror, you can't really tell if you're driving sedan or Avant. That might be because it's quite absorbing on a launch drive, but I couldn't split the driving experience between the two.
The only black marks I could easily identify on the S4 is tyre noise on some surfaces and perhaps the steering could be a little more lively like its competitors.
BMW Alpina B79/10
Who on Earth thinks a BMW 750Li isn't fast enough or comfortable enough, even with all its horsepower, luxurious cabin and technology? Alpina, that's who.
Redevelopment of the 4.4-litre V8 with new turbochargers, a high-capacity cooling system, different air suspension set-up and an exhaust system made by Akrapovic have made this already exceptional car better. Better to drive and better to be driven in.
The ride, even on those 21-inch wheels and low-profile Michelin Pilot Super Sport tyres (255/35 ZR21 on the front and 295/30 ZR 21 on the rear) is incredibly comfortable. I drove it and also had a chance to recline in the back and be chauffeured (by our photographer) and the ride was so composed and refined it was hard to believe I was travelling along some truly awful urban roads with their cracked and pot-holed surfaces.
And it's quiet, too. Which will suit those in the back being transported swiftly from the airport to their next meeting, but if you're after a loud and angry exhaust note then you won't find it in the B7. Sure, from the outside at full throttle the B7 has a menacing growl, but this isn't a BMW M car that will bark and snarl.
See, while BMW's M division makes brutal, loud, high-performance versions of their regular cars, Alpina makes comfortable, stealthy, high-performance ones.
All-wheel drive provides fantastic traction and ensures that grunt doesn't just tear the tyres off those rims when you sneeze on the throttle.
And while the air-suspension is soft and comfortable, adaptive dampers adjust for when the road goes twisty, providing impressive handling for a heavy and long car.
Really, though, the B7 is built for long, endless stretches of roads, and the acceleration beyond 100km/h is almost as startling as that from 0-100km/h, as it wants to push straight past 200km/h towards that 330km/h top speed.
Which, unless you know a good lawyer or happen to be one, will send you straight to jail. Yes, the B7 is probably too much car for Australian roads. Only on a German autobahn would a B7 be fully at home.
I felt like I was given a Melbourne Cup-winning racehorse for a week but could only ride it in my suburban backyard.
The S4 also retains the exit warning feature that tells you if you're about to door an approaching bicyclist or another car. What Audi calls "pre-sense rear" is a system to warn drivers behind you they're approaching too fast and are quite likely to hit you. Turn assist is also available, stopping you (at low speeds) from turning across approaching traffic.
The A4 scored five ANCAP safety stars, the highest available.
BMW Alpina B79/10
The Alpina B7 comes with all of the BMW 750Li's safety equipment – this includes AEB, lane-keeping assistance and lane-departure warning, blind-spot warning, active cruise control, night vision with object recognition, auto parking and surround view camera.
Along with the suite of airbags, there's traction and stability control and ABS, as you'd expect.
The 750Li and B7 have not been given an ANCAP score.
Audi offers a three-year/unlimited kilometre warranty on the S4 with service intervals of 12 months or 15,000km whichever comes first. Roadside assist is part of the package, lasting for the first three years of the car's life.
You can pre-purchase three years/45,000km of servicing for $1620 under Audi's Genuine Care Service Plan. Full details are available on Audi's website, but it basically covers a scheduled oil changes and inspections and not a lot else.
BMW Alpina B77/10
The B7 is covered by BMW's three-year, unlimited-kilometre warranty. Servicing is recommended every 12 months or 15,000km. The B7 is covered by BMW special vehicles servicing plan, which means services are cost-free for the first three years of the car's life.