BMW Alpina B5 vs Hyundai Imax

What's the difference?

The Alpina B5 is a special car – more special than most people will ever give you credit for if you own one. Those that do know what an Alpina is will let you know; people will cross dangerously busy streets to talk to you about your car. Insanely fast, almost incomprehensibly comfortable and effortlessly powerful to drive.

It looks a bit old-fashioned in a ‘Tarago’ sort of way and is starting to show its age with a five-speed transmission and in lacking some of the latest safety features. However, if you need to regularly transport up to eight people and expect good comfort, economy, performance, practicality, reliability and warranty as part of the deal, then the iMax still has more than enough going for it to justify top three positioning on any people mover shopping list.

Interesting is the right word for it, because while it might be questionable that Alpina's changes to the exterior are aesthetic pleasing, they are definitely intriguing to those who aren't familiar with the brand.

First, there are those 20-spoke wheels. Alpinas have worn this style of wheel forever and they've become the most famous outward sign that this is not just another BMW. So don't under any circumstances take them off and replace them with anything else. You'd be run out of town by the Alpina mafia.

Yes, they're more painful to clean than a cheese grater (trust me, I know. And if you look closely at these images you can see the dirty bits I've missed), but if you really don't like them then perhaps it's a sign this car isn't for you.

Then there's the boot-lid spoiler. It's square and 1980s'-looking, it also appears a bit like it's been bought online and installed by a teenager, but again, this is another Alpina tradition and it suits the car's character perfectly.

All right, those pinstripes; they're known as the Deco-Set and are a hat-tip to the Alpina racecars of the 1970s and '80s. Again, don't take these off, your Alpina will drop through the centre of the Earth in value. These are also part-and-parcel of owning one of these cars. I'm not a massive fan of them.

But I'm all about that front spoiler, with the floating Alpina lettering that you can option in silver, high-gloss black or gold.

Inside, there are fewer Alpina additions, but they're nonetheless unmissable. There's the Alpina-badged steering wheel, and a new virtual instrument cluster, embossed headrests and  illuminated door sills.

There's also the little numbered plaque on the centre console which proves its authenticity, ours was number 49. Out of how many? I don't know. But I do know Alpina produces only about 1700 cars globally a year. Rolls Royce does about 4000. So, you can rest assured your B5 is exclusive.

At almost 5m long, 1.9m wide and 1.5m tall, the B5 is a large saloon, but having recently reviewed the Alpina B7 it feels small in comparison. How does it drive? We're getting there.

Compared to the Kia Carnival, which looks like tomorrow’s people mover today, the iMax is looking more like yesterday’s as its tall and minibus-like dimensions are immovably defined by its iLoad commercial van birth twin. Even so, there is still plenty of practicality and ease-of-use inherent in this traditional design, including a bright and airy cabin with generous headroom for all.

The iMax rides on the same 3200mm wheelbase as the iLoad and shares many of its key dimensions along with power-assisted rack and pinion steering and four-wheel disc brakes. However, to provide better ride quality than the van’s leaf springs, for human cargo the iMax’s multi-link live rear axle rides on plusher coil springs. The Series II upgrade also includes restyled 16 x 6.5-inch alloy wheels shod with 215/70 R16C tyres and a full-size steel rim spare.

The large front doors open wide for easy entry and exit and with no console between the front seats the driver and front passenger can literally walk through to the passenger area. Sliding doors on each side, with large windows that can be propped open for extra ventilation, allow generous access to the second and third row seating. These bench seats provide ample head room and adequate shoulder and legroom for medium-sized adults, even with three across the back row, which is a refreshing change from many SUVs that treat third-row adults as extra baggage.

There’s also ample ventilation, with roof and floor-mounted air vents for the second and third rows linked to a separate control panel which allows passengers to adjust the fan speed and air-con temperature independent of the driver. Combined with generous headroom and large rear passenger side windows which can also be propped open, the iMax succeeds in minimising claustrophobic feelings particularly for those in the back row.

Practicality is not really a BMW strong point no matter which model you pick. See, BMW mostly makes the car equivalent of uber-stylish and skin-tight active wear which looks good and performs brilliantly, but sometimes you just want pockets and a bit of room for your… um… bits and pieces.

So while there are two cup holders up front and two in the back, the bottle holders in the doors aren't huge, the centre console bin is on the small side, there's a hidy-hole in front of the shifter, the glove box is just a box for little more than gloves and there's no other great cabin storage options.

Legroom in the rear is good but not great, too - I'm 191cm tall and have about 30mm between my knees and the seat back in my driving position. Middle-seat passengers will also have to straddle the drive shaft hump in the floor. Headroom is restricted in the back, too (you could blame the sunroof) with my hair just skimming the headlining (I do have big hair).

Under that power tailgate, the B5's boot capacity is 530 litres which is 15L more than its big sister, the B7. There are two plastic storage areas either side of the luggage space for wet things. While there is one USB outlet in the front there aren't any in the rear.

The iMax’s hefty kerb weight of 2230kg and GVM (gross vehicle mass) of 3030kg allows for a payload of 800kg and up to 125kg of that can be carried on the roof with a three-rack system. Eight average-sized adults on board would use up most of this payload capacity, so if they need to bring luggage it could easily surpass the payload limit. 

It’s also rated to tow up to 1500kg of braked trailer and with a GCM (gross combined mass) of 4530kg it can carry its maximum payload while doing it. However, you also need to keep in mind that the 150kg tow-ball download limit is included in the total payload, leaving 650kg rather than 800kg to play with. Even so, any vehicle that can tow its maximum trailer weight with a full payload gets a big tick from us, particularly one with a cavernous (VDA) 842 litres of cargo volume available behind the third row of seats.

An impressive array of storage solutions includes dual map pockets and a single bottle holder in each front door, a dash top storage compartment, dual glove box compartments, central dash dual retractable cup holders and an overhead felt-lined sunglass holder. Those seated in the second row get dual map pockets and single bottle holders in each sliding door plus mesh-type storage pockets on the rear of each front seat, while third row outer passengers get storage recesses and cup holders.

Our test vehicle was the premium grade with 2.5 CRDi turbo-diesel four cylinder engine and five-speed automatic transmission at $47,290 plus on-roads, with metallic paint an extra $695.

The Series II upgrade features minor styling tweaks and new equipment including driver and front passenger side (thorax) airbags, driver-front passenger climate control, an upgraded 7.0-inch touchscreen multimedia interface with connectivity including Bluetooth, 'Siri Eyes Free' (iOS) and 'Google New' (Android) but no Apple CarPlay, electric folding door mirrors, premium steering wheel and gear-knob, rear view camera and cruise control (on diesel auto only).

These upgrades boost what was already a well-appointed package including numerous passive and active safety features, tilt-adjustable steering wheel with audio controls, one-touch power front windows and a 12 volt dashboard power outlet to name a few.

The Alpina B5 uses the same 4.4-litre V8 engine found in the BMW M5 (and also the B7). But, and it's a big but, the M5 makes 441kW and 750Nm, while the B5 outdoes it with 447kW and 800Nm. Admittedly, the B5's torque arrives at the 3000rpm mark, while the M5's is all there from 1800rpm.

How does the B5 beat it? Alpina installed its specially developed twin turbochargers and intercoolers, a high-performance cooling system, a reconfigured air intake set up and a different exhaust system.

The B5, though, is a tenth of a second slower to 100km/h compared to the M5 with a time of 3.5 seconds, but it will blast on to a top speed of 330km/h while the M5 is limited to 250km/h in regular form and 305km/h with the optional M Driver's package.

Both uses the same ZF eight-speed automatic transmission with identical gear ratios, and both are all-wheel drive.

The iMax shares the same 2.5 litre common rail four cylinder turbo-diesel found in the iLoad and it’s just as well suited to moving people as it is to shipping heavy cargo. With 125kW at 3600rpm and a bountiful 441Nm of torque peaking at 2000-2250rpm, this refined and torquey engine uses its variable vane turbocharger (VGT) to good effect with great flexibility through the rev range.

The five-speed automatic with sequential manual shift option is the only transmission available with this engine and they are well matched. The torque converter’s stall speed and low 3.730 first gear combine with the 2.929:1 diff ratio to provide lively response from standing starts, making it well suited to stop-start city and suburban duties. The overdriven fifth gear allows economical cruising at highway speeds.

The Alpina B5 needs petrol. By that, I mean it needs quite a lot of it if you want to enjoy it properly. What type of mileage does it get? Officially, it should use 11.1L/100km after a combination of urban and open roads, where as the M5 is set to 10.5L/100km.

That makes sense, the B5 produces more power and torque, and it's 85kg heavier than the M5 at 2015kg.

Our test car's trip computer was reporting 13.2L/100km after flying low over country roads and slow city piloting. The more time spent in the urban warfare that is the daily peak hour commute, the more that figure crept and hovered around the 15L/100km mark.

Hyundai claims a combined figure of 9.0 litres/100km but our numbers based on trip meter and fuel bowser readings came in at 11.8L/100km. Based on these ‘real world’ figures expect a fuel range of around 640km from its 75-litre tank.

Ok, stay with me here. For this next bit you'll need a fresh egg, a lounge chair, and it might be a good idea to have some plastic bags and carpet cleaner on hand.

First, in front of the lounge chair flatten out the plastic bag and place the egg on it. Next, sit down on the chair and very carefully rest the ball of your foot on the egg with as little pressure as humanly possible.

This is exactly how little force you need to apply to the go-pedal of the B5 to accelerate from a standstill to 60km/h in about five seconds.

If anything sums up the driving experience of the B5, it's that sense of effortlessness.

Stomp on that accelerator, and you'll be shot to 100km/h in 3.5 seconds, without a hint of broken traction thanks to the all-wheel-drive system.

The ride should have been terrible on 20-inch wheels shod in low-profile rubber (Pirelli P Zero 255/35 front, and 295/30 rear), but the Alpina-tuned air suspension is close to miraculous in the way it cushioned and censored the potholes out of Sydney's worst roads. Yes, it can be a touch floaty, particularly in the Comfort Plus setting, but this is benchmark-setting stuff for a comfortable ride.

Don't expect this beast to roar. Unlike the M5, the B5 gets its work done without deafening everybody around it. Sure, the B5's V8 sounds amazing when you push it, but it's not brash, not loud and not lairy. Buy an M5 or Mercedes-AMG E63s if you want to be heard half a block before you get home, but you won't get that with the B5 and its exhaust system.

The B5 also handles well, but I have to say the engagement factor is low. I piloted it effortlessly through the twists and turns of my country test circuit and roads which normally have me grinning like a maniac behind the wheel had me feeling a bit disconnected in the B5. That air suspension, the numb steering and pedal actions make it difficult to ‘feel' the road.

It's highways where the B5 is a king, but even at 110km/h there's the sense that this car is still fast asleep and won't get out of bed for anything less than 150km/h - making it perfect for Germany's autobahns, but maybe not for here in Australia.

Impressive comfort, refinement and low NVH (noise, vibration and harshness) levels ensure the task of moving people is not a chore. The iMax is well designed for its specific role in life and gets the job done with a minimum of fuss. Loads varied from driver only up to six adult passengers during our test.

Although fitted with rear coil springs the tail stills feel a bit jittery over smaller bumps.

In city and suburban traffic it’s a surprisingly agile and energetic performer that belies its 2.2 tonne-plus kerb weight, with nicely-weighted steering, responsive braking and a sharp 11.22 metre turning circle.

Although fitted with rear coil springs the tail stills feel a bit jittery over smaller bumps and road irregularities when empty or lightly loaded, as those thick coils are designed to cope with a GCM of more than 4.5 tonnes. In other words, ride quality is at its best with a decent load on board.

Wind, tyre and engine noise are well suppressed. The resulting low cabin noise is a big bonus, particularly at highway speeds where conversations between front seat passengers and those in the third row can be conducted at normal voice levels. Along with its comfortable bench seating, this quietness makes longer journeys less tiring and more engaging for all passengers no matter where they’re seated.

Driver and front passenger comfort is excellent with all controls and dash contours thoughtfully placed.

The iMax’s tall highway gearing results in only 1800rpm at 100km/h and 2000rpm at 110km/h where maximum torque also resides. Driver and front passenger comfort is excellent with all controls and dash contours thoughtfully placed, plus supportive seating with inboard fold-down armrests. Those front seats provide a commanding view of the road and all external angles thanks to large door mirrors and a rear view camera.

Our only major gripes are that in wet weather the swept area of the left-hand wiper leaves the front passenger with more than half of their forward view obscured by unswept glass. It also shares the iLoad’s terrible static interference on AM band radio at times. And one iLoad feature we would like to see shared with the iMax is its automatic central-locking mechanism which locks all doors when vehicle speed exceeds about 5 km/h

The iMax falls one star short of the maximum five-star ANCAP crash safety rating. Even so it’s equipped with numerous passive safety features including front (and now) side airbags for driver and front passenger, full lap-sash seatbelts and head restraints for all passengers, ISOFIX child restraint anchorage points for the two outer seats on the second row and three top-tether child restraint anchorage points.

There’s also the usual electronic active safety features including brakeforce distribution (important for load luggers), rear parking assist and rear view camera with guidelines, but no auto emergency braking (AEB), blind spot detection or collision alert.

The Alpina B5 is covered by BMW's three-year/unlimited kilometre warranty. Servicing is recommended every 12 months or 15,000km.

Standard warranty is five-year/unlimited km, with scheduled service intervals of 12 months or 15,000km, whichever comes first.

A capped-price servicing scheme is in place, with $349 the standard rate ($499 for 60,000km service only).

Roadside Assist is complimentary for the first 12 months, plus there's an optional Roadside Support Plan for up to 10 years, 'Lifetime Service Plan' and 'Sat Nav Update Plan'.

You can also expect a dedicated Customer Care Centre and the ‘myHyundai’ exclusive owner website.