BMW Alpina B4 vs Foton T5

What's the difference?

You could almost call the B4 S the anti-M4. It's still fast and practical but from a completely different perspective. It's much more a grand tourer than the M4 and even with the Akrapovic exhaust (usually a byword for joyous, anti-social racket), subtle.

For some, the price won't matter because the Alpina delivers what they want - M4-like straight line performance without the histrionics or the uncompromising chassis. And there's also a bit of that perverse exclusivity of the styling that you won't get anywhere else.

The T5 EV would be best suited to short-haul city and suburban tasks, with daily back-to-base operations ensuring the convenient and dependable charging infrastructure required (compared to the lottery of public charging). Given Foton’s claim of upfront and operational cost reductions, the T5 EV could be what some commercial fleet managers are looking for. 

Alpina has always had a particular aesthetic that could uncharitably be termed as mid-'80s West German - all set square angles and body graphics. Think David Hasselhoff's Berlin Wall look. The company has never really deviated from adding squared-off body bits to the various BMWs it has rebadged under its long-running agreement.

For the B4S, Alpina adds the signature billion-spoke alloy wheels (only a slight exaggeration), a new front splitter complete with Alpina lettering, a weirdly proportioned boot lid lip spoiler and - not even joking - pinstripes. Like I said, mid-'80s West German. You can still recognise the sleek 4 Series Coupe but perhaps the worst of it is the super-sized, wonky-looking ALPINA B4S on the boot.

Inside is rather more restrained apart from the ill-fitting Alpina plaque under the climate control. Again, it's all 4 Series in here, with the lovely Merino leather liberally applied across the cabin. Less lovely is the wood on the door pulls and console but the door cards have an oddly appealing woven leather which looks and feels good.

Sadly the standard 4 Series steering wheel is along for the ride. There's nothing wrong with it - although the Alpina logo does look out of place - but if I were a product planner, I'd beg for the lovelier M wheel.

The T5 EV has a 3360mm wheelbase and steel ladder-frame chassis, with a leaf-spring solid front axle, leaf-spring rear axle and rear-wheel drive. Braking is by front discs and rear drums.

Its 81.14kWh of energy capacity is provided by two 60Ah lithium-ion batteries, one on each side, mounted in long parallel cradles. Drivetrain maintenance items, including motor and battery cooling systems, are accessed by unlocking and tilting the hinged cab forward.

The cab offers sufficient head, shoulder and legroom for up to three occupants, including tall people in the often-compromised centre seat. However, the centre seat is only equipped with a lap-belt.

If you're in the front, you're in luck - it's a comfortable place to be, with plenty of leg and headroom. Down back isn't terrible despite the coupe roofline. The two seats are nicely shaped for maximum comfort and separated by an odd plastic tray. The fold-down armrest has two cupholders.

Front seat passengers score a pair of cupholders (bring the total to four for the car) and the long doors will hold a bottle each.

The boot swallows a reasonable 445 litres, which isn't at all bad.

With a maximum claimed kerb weight of 2500kg, the T5 EV has a 2000kg payload rating for car licence operation and up to 3500kg for drivers with a Light Rigid truck licence (these payloads include the weight of service bodies).

Its 8000kg GCM (how much it can legally carry and tow at the same time) means car licence drivers can tow up to 3500kg of braked trailer while carrying its maximum payload. For Light Rigid drivers, the maximum trailer weight drops to 2000kg, given the larger payload allowance.

The Pantech body fitted to our test vehicle has twin rear doors, with 270-degree opening and sturdy hooks on the body sides to hold them in place.

Cabin storage includes narrow bins but no bottle-holders in the doors, an overhead storage shelf on the driver’s side, a small compartment with spring-loaded lid in the dash and a single glovebox.

The centre console only offers a single bottle-holder. However, the centre seat backrest folds forward and flat to reveal a small desk on the back of it, complete with a hidden storage compartment and two cup/bottle-holders.

The T5 EV cab-chassis comes equipped with a single electric motor and 81.14kWh battery capacity for MSRP of $139,450 plus GST. 

Standard equipment includes 16-inch alloy wheels (dual rears) with 205/75R16 LT tyres and a full-size spare, seating for three, remote central-locking and height/reach adjustable steering wheel.

There’s also a reversing radar and camera, cabin roof air-deflector, lower rear and side guards, 24-volt dash socket and basic multimedia including radio, Bluetooth and MP3/MP5 connectivity.

A lot of your extra money turns up under the bonnet. These days the 440i packs BMW's slick B58 turbo straight six and the B4S does likewise. The boys from Buchloe in Bavaria (there are certain to be women there, too, I just liked the alliteration) added a pair of Alpina-spec turbos to generate a whopping 324kW and, more importantly, 660Nm. Alpina says 600Nm (the max torque figure of the brilliant M4 CS) is available from 2000-5000rpm, while the full 660Nm is available from 3000 to 4500rpm.

The M4 Pure has 317kW and 550Nm from the S55 straight-six. Just so you know.

Like the 440i but unlike the M4, the B4S employs the dependably brilliant eight-speed ZF automatic found throughout the BMW range.

The T5 EV’s single electric motor has a peak power output of 115kW and maximum torque of 300Nm. It also offers two drive modes: ‘Eco’ which minimises energy use with a top speed of 73km/h and ‘Power’ which uses more battery charge but increases top speed to 94km/h (both speeds achieved during our test).

Alpina quotes 7.9L/100km on the combined cycle and we went through the premium unleaded at the rate of 11.7L/100km. I enjoyed myself, so that's not a terrible result.

Foton does not publish an official kWh/100km consumption figure, but claims a fully loaded driving range of 180km from its 81.14kWh battery capacity.

According to the dash readouts at the end of our test, which we did on a single charge, we drove 142km with 38km of estimated range remaining. Our displayed average consumption was 51.3kWh/100km, so based on that figure you could expect a driving range of around 160km, which is less than the dash estimate.

Our testing was conducted without a load (see Driving) but it did include considerable freeway travel required to collect and return the vehicle, so regenerative braking was minimal. And we had to use Power mode to maintain freeway speeds.

Foton claims that DC fast-charging allows for a full recharge in 1.5 hours, while the 11kW onboard AC charger takes 7.2 hours which is suitable to overnight turnarounds.

One of the key differences between the B4 and M4 is the ride. While the M4 can crash over bumps and generally be a little hard to live with, the crew in Buchloe have gone after a much more plush ride. And in that they have succeeded because the B4 S is a mighty fine cruiser. Bumps are dismissed with a haughty disdain, even Sport + silliness doesn't completely write-off ride quality.

Very impressive too, is the steering. While still not at Lotus Elise levels of feel (few cars are), the Alpina tweaks connect the your palms to the road with more clarity than what you'll find in the 440i or M4. Where the M4 particularly adds too much weight, the 440i is a bit more circumspect in that regard.

And then we come to the engine. The B58 six is a belter, better even than the N55 that preceded it. It's still a 3.0-litre straight six but is part of BMW's modular engine family that starts with a 1.5-litre triple in the Mini and 1 Series. The Alpina-spec turbos are noisier, the Akrapovic exhaust lighter and also noisier. It doesn't have the all-out crackle and pop of an Audi or Merc (perish the thought), but when you're on it, the B4 means business. The 660Nm of torque, available over a wide rev range, delivers a steel fist wrapped in a velvet glove and bubble wrap - the speed builds rapidly but smoothly. 

The approach to the chassis tune seems to be based on the driving talents of mere mortals on normal roads, which is kind of like the 440i. It's terrific fun to drive hard but it's very forgiving and patient. The great thing about it is that you wouldn't think twice about jumping in it for the long haul, so comfortable and quiet is the cabin. The M4 will leave it for dead on a winding road, but that's perfectly fine.

One irritant is the replacement of the admittedly cheap BMW gearshift paddles with weirdly non-tactile buttons. They're not particularly easy to use and, probably worse for a sporty car, unsatisfying. It's an odd detail with which to go off the reservation. Cheeringly, the eight-speed ZF is its usual perfect self, so you don't have to worry too much about manual mode or go old school and use the shifter.

There are large handles on the windscreen pillars to assist climbing aboard and the driving position offers adequate comfort, with its steering wheel adjustments and left footrest. However, some rake adjustment in the flat base cushion would be welcome, as it can feel like you're sliding forward at times.

The drive selector dial on the console has three settings (Reverse, Neutral, Drive) marked by the letters R-D-N, so it’s simple to use. Because of its near-silent operation at low speeds, the T5 EV is equipped with an audible pedestrian warning system. This activates at speeds below 30km/h and makes a unique sound that defies description.

We drove in Eco mode when not on the freeway and found that its quiet and smooth surge of acceleration was more than adequate for a vehicle weighing more than 2.5 tonnes. We did briefly try the Power mode but did not detect a significant boost in performance.

It has good steering feel (with electric power assistance) and its noticeable lightness at low speeds is appreciated when manoeuvring in tight spots. The brake pedal provides vigorous response and a strong regenerative effect (as displayed on the energy gauge) that optimises battery range.

The instrument display shows drive mode, estimated driving range, battery charge and temperature, energy use, average energy consumption and other useful data relating to drivetrain operation. Useful enhancements would be speed-sign recognition and a clearer image for the reversing camera.

Although almost silent under 60km/h, increased noise at freeway speeds includes some faint drivetrain hum and wind-buffeting around the large door mirrors, which compensate by offering excellent rear vision.

We didn’t get to do our usual GVM test, due to a software glitch in the public charging facilities we arranged to use on the day. Back-to-base operations with in-house charging would avoid these issues.

Includes driver and passenger airbags plus AEB, lane departure warning, hill-start assist, traction control and other active safety features. There’s also the low-speed pedestrian warning system, reversing camera/radar/buzzer, fire extinguisher, unlocked cab warning and more. The lap-belt for the centre passenger seat, though, needs upgrading to a full lap-sash type.

Alpina offers a two-year/unlimited-kilometre warranty which is a bit behind the times and not in keeping with the price point. Servicing is another matter altogether and you're subject to your dealer's standard charges for servicing.

Five years/200,000km warranty plus an eight years/300,000km traction battery warranty. Also 24/7 roadside assist. Scheduled servicing every 12 months/20,000km whichever occurs first. Total scheduled servicing cost for five years/200,000km is $7850 or a pricey average of $1570 per year. No capped-price servicing is offered.