Peugeot 508 vs BMW 428i

What's the difference?

The Peugeot 508 Sportswagon GT PHEV proves wagons can be extremely stylish but looks aren’t everything and it is an expensive option compared to its luxury rivals. It earns its place with the premium interior but the safety could be improved on and the tech is more confusing than it needs to be. But this wagon offers an alternative for families who are sick of being in an SUV yet still need a little extra space. 

My son didn’t go nuts over this and complained about his view.

The 4 Series line offers three distinct points of difference from the more traditional 3 Series, each with their own attraction. The sharpening of the sticker prices and the additional spec helps their cause as well, with the 430i Coupe probably our pick of the range. The 440i is the firecracker of the group, while the 420d is also worth a look, thanks to its value and prodigious torque output.

The design of this wagon is what wins it the most points. It is a damn fine specimen with the sleek lines in the body panelling and the sexy rear that looks well-proportioned for its 4790mm length.

Dark, narrow windows, 18-inch alloy wheels and a minimalist-looking nose, with fang-like daytime-running lights, all enhance its sporty look.

The rear lights have Peugeot’s signature ‘claw’ design and there’s something suggestively fun about seeing a twin-exhaust on a wagon!

On the interior, the multimedia system takes centre stage and the dashboard looks quite sleek, despite all of the deep cutaways.

The steering wheel is in the compact style that Peugeot is known for but it makes the cockpit feel driver orientated.

The quilted Nappa leather trims and shiny piano-black accents (with the piano-key controls) make for a refined cabin space.

No external changes to the 4 Series' bodywork have been affected  for  this midlife refresh, but there have been plenty of tweaks to the standard equipment offerings right across the board.

The front row gets the most space and you’ll be able to get into a comfortable position even if you’re tall.

However, it is a low car with its 142mm ground clearance and there may be a few grunts as you get in and out (or is it just me?).

My seven-year old loves how easy it is to climb in, though he didn’t have the best view out of the windows because the sills sit high.

The footwell lip also sits quite high, which isn’t an issue until you can’t open your door very wide and then it’s clumsy in a tight parking space.

The electric front seats are very comfortable and the extendable under-thigh support helps to minimise leg fatigue on a longer journey.

Surprisingly, for my 168cm (5'6") height, I have to sit much further back than I ordinarily would to get a comfy driving position.

In the back, you have plenty of headroom but behind my driving position, the legroom could be better.

An adult would still find it fairly comfortable on a longer journey so long as they aren’t behind someone tall. The seats themselves are well-cushioned and you sit in, rather than on top of them.

Individual storage options are good for this class with a dual-opening middle console, glove box and a great utility cubby next to the transmission shifter.

There is also a shelf underneath the centre console that houses the wireless charging pad and two USB-A ports but it’s a tad awkward to use and even see the ports when you're seated.

The amenities are good in the rear but for a top-spec model it’s lacking the luxury items you might expect, like heated seats and climate control but you’ll enjoy map pockets, reading lights, two USB-A ports and directional air vents.

It also has a fold-down armrest with two shallow cupholders, that in a quick turn, might spill their cups!

The boot is a great size at 530L with all seats in use and you can bump it to 1780L with the rear seats folded.

You get a level loading space and a 60/40 split with a ski-port in the back seat, which opens up your storage options.

There is a tyre repair kit rather than a physical spare but the tailgate is powered, which I always like.  

The technology is a mixed bag. It looks sharp and the touchscreen multimedia system is responsive but isn’t as easy to use as others I’ve sampled.

It doesn’t have a lot of accessible information or customisations available but it is easy to connect to the wired Apple CarPlay. There is also wired Android Auto for those users and built-in satellite navigation. 

The 12.3-inch digital instrument panel is the prettiest piece of tech in the car and there is more customisation available to make it feel yours.

Considering its price point and top-model status, it's more obvious that you miss out on premium items like three-zone climate control, faster USB-C connections and a head-up display.

Two-doors are never the most practical devices, but the 4 Series Coupe and Convertible duo make a decent fist of it for front-seat passengers. There are bottle holders in both doors and a pair of cupholders in the centre console, along with a large lockable glovebox.

The centre bin is, however, quite shallow, and houses the car's single USB port inside it. There is covered storage under the dash for smaller items, and a small rubber-lined tray that the current crop of phones has outgrown.

The rear seating in the Coupe is reduced to almost a formality, especially if the front seat passengers are tall and the front seats are set back, while the sloping roofline reduces head space quite considerably. A centre armrest contains a pair of cupholders, and there are small side pockets.

Rainy conditions precluded us from trying the Convertible's metal folding roof, but the rear seat space restrictions also apply here. Its 370 litres of boot space is roomy enough for a drop-top, while a clever lifting function raises the folding roof structure up by about 300mm to allow luggage to be stowed under the panels when the roof is down. Capacity drops, though, to just 230 litres.

The Gran Coupe, on the other hand, is the most practical car in the entire 3 and 4 Series line-up outside of the 3 Series Touring wagon. With a large, flat load area, and a hatch-like tailgate, the Gran Coupe can swallow 480 litres of gear with the seats up and an impressive 1300 litres with the seats lowered.

Face-level rear vents, more head and backseat legroom – not to mention the fact you don't have to squeeze into the rear past the front seat – makes the Gran Coupe a most useful device, and it's little wonder it's the most popular variant of the three.

Entry into the 4 Series world now stands at $68,900 plus on-roads for the petrol 420i Coupe and Gran Coupe, and tops out at almost $118,000 for the 440i Convertible.

Both the 420i and 420d have been boosted by the addition of adaptive M dampers, a heads-up display, powered folding rear-view mirrors, lane-change warning, driving assistant and BMW's surround view camera with top and side views.

BMW claims the extra kit is worth just over $8000. Leather seats, sat nav, BMW's ConnectedDrive Emergency call system, bi-Xenon headlights and reversing camera are also featured. An eight-speed automatic transmission is offered as stock, but a six-speed manual can be optioned at no cost.

The diesel version costs an additional $2200 over the petrol powerplant.

Stepping into the 430i, the M Sport Package is offered as standard, with the Luxury line, which includes a leather-trimmed dash, a no-cost option.

Additional standard equipment over the outgoing 428i includes 19-inch M rims, heads-up display, lane change warning, driving assistant and surround view camera. The 430i also gains electric lumbar support for driver and front passenger seats and a nine-speaker stereo system over the base 420i.

Finally, the range-topping 440i scores a heads-up display, lane change warning, driving assistant, surround view camera, adaptive LED headlights, leather dash, front seat heating, high beam assist, active cruise control with stop and go function and parking assistant over the outgoing 435i.

Over the 430i, the 440i also gets variable sport steering, a Harman/Kardon surround sound system with 16 speakers, a leather instrument panel (with M Sport Package), ConnectedDrive internet and concierge service, and air collar neck-warming ducts for the 440i Convertible.

The GT plug-in hybrid model has a 1.6-litre, four-cylinder turbo-petrol engine, as well as an electric motor that sits on the front axle. It has an eight-speed automatic transmission that produces smooth gear changing driving the front wheels.

The combined outputs are 165kW and 360Nm which means you have a good amount of power for this sized car but it’s not a performance wagon as its 0-100km/h sprint time is 8.3 seconds.

The lithium-ion battery has a small 11.8kWh capacity and will get from 0-100 per cent in three and a half hours on an 11kW system. On my standard house plug, it took closer to six and a half hours.

There are two new petrol engines, two new badges and prices cuts of up to $10,000 right across the board for the line-up, along with additional standard equipment that improves the value equation even further.

The line kicks off with the 420, which can be had in either diesel or petrol guise. The 420i gains BMW's new B48 2.0-litre four-cylinder turbo petrol engine, which gains 5kW over the old motor to produce 135kW and 270Nm.

It also benefits from slightly improved fuel economy, with a drop of 0.3 litres per 100km for the Coupe and 0.5 for the Gran Coupe to 5.8L/100km, and a fall of 0.2L for the Convertible to 6.2L/100km.

The 420d retains its 140kW, 400Nm 2.0-litre four-cylinder turbo diesel engine, which returns 4.3L/100km in the fixed roof cars and 4.7L/100km for the Convertible.

The 430i – formerly known as the 428i – also receives the new 2.0-litre petrol engine, albeit in a 185kW/350Nm tune. Its fuel economy drops a healthy 0.6L for the Coupe and Gran Coupe and 0.4L for the Convertible, posting figures of 5.8 and 6.3L/100km respectively.

The top-spec 435i has been transformed into the 440i with the addition of BMW's new Twinpower 3.0-litre straight six petrol motor. Its output jumps 15kW to 240kW and by 50Nm to 450Nm, and its consumption falls by more than half a litre to 6.8 litres per 100km for the closed-roof pair and 7.2L/100km for the Convertible.

All cars come standard with a 'traditional' ZF eight-speed torque converter automatic transmission with steering wheel paddles as standard fitment, while a six-speed manual gearbox is a no-cost option across the line.

Peugeot says you can travel up to 55km on pure electric function, however my morning (return) school run is 38.4km and the electric range was spent by the time I parked in my garage after starting on a full charge. 

Under optimal conditions, where you’re utilising both the engine and motor, the GT PHEV has an official fuel cycle consumption of 1.5L/100km.

After charging it three times, travelling 444km on a mix of open/urban roads and using 33 litres of fuel, my real-world usage came to 7.4L/100km.

You absolutely get the best economy when you regularly charge it but sometimes you just don’t get the time to!

You'll need 43 litres of premium 95 RON unleaded fuel to fill the tank which, using our real-world average consumption figure, translates to a driving range of around 580km.

Our brief test loop on a rainy, blustery Melbourne winter's day in all three model types (but no diesel) netted varying fuel consumption readings across the line; we recorded 8.4L/100km in a 420i sedan against a claimed figure of 5.8, 9.8L/100km for the 430i Gran Coupe against a claimed figure of 5.8L/100km, and 8.4L/100km against the 440i Gran Coupe's 6.8L/100km.

The 508 Sportswagon is an odd car to drive. Around the city, the steering makes it feel like you’re in a go-kart and you may over-correct until you get used to it. 

On the open-road, it feels like it gets into its groove but the power reserves feel a tad too shallow as the engine can complain with only a light load. 

The suspension is well padded and you won’t notice too many bumps but you do get a fair bit of wind and road feedback at higher speeds. 

Because of the narrow windows, I am surprised by how great the visibility is but you feel tiny when you sit next to a big SUV in traffic!

That said, it corners beautifully and taking this on a winding coastal road is super fun.

The brakes are very responsive, which is great in stop-start city traffic but can make it feel a little jerky while navigating a car park.

And on that note, because of the funky steering feel, it takes a moment to calibrate your senses with what the car is doing.

Once you get used to it, it’s simple to park but the quality of the 180-degree camera system is pretty rubbish for where this car sits in the market.

BMW introduced a raft of tweaks to the 3 Series platform late last year, which have translated over to the 4 Series. The key addition across the line is BMW's two-stage adaptive dampers that feature a Sport and a Comfort circuit, fitted as part of the M Sport pack that comes standard on the 430 and 440, and is a $2600 option on the 420.

Larger 19-inch rims are fitted to the 430i and 440i cars, while the 420 gets 18s out of the box. It's possible to fit 18s on the more expensive cars, as part of the no-cost Luxury option pack that supplants the standard M Sport pack.

While our test was brief and held in less than ideal road conditions, the large-wheeled 4 Series really didn't enamour themselves to this author. There's a distinct lack of communication from the tyres and chassis through the steering wheel and your backside, while the combination of firm Sport shocks and large 19-inch wheels with narrow-section tyres made for an uncomfortable ride over country roads.

Sampling a 420i with the Luxury 18-inch rims, however, improved things immensely, with much better feedback and comfort that didn't come at the expense of handling.

One of BMW's strong points should be its steering, given all the 3 and 4 Series cars are still rear-wheel-drive… but it's not, unfortunately. The electrically assisted set up is far from perfectly calibrated, feeling too dull and digital underhand, no matter what the setting.

The pick of the bunch performance wise is – logically – the six-cylinder 440i. The turbo powerplant is potent from right down the rev range, with a muted yet still pleasing engine note permeating the cabin. The self-shifting mode on the eight-speed auto does a good job of keeping up as well.

The updated 2.0-litre four is a sprightly performer, too.

 six airbags, lane departure warning, pre-collision safety pack, parking sensors, active cruise control with collision warning, AEB and pedestrian warning, along with reversing camera and surround-view cameras across the line.

On the 508 you’ll enjoy a five-year/unlimited km warranty and the battery is covered by an eight-year or up to 160,000km warranty, which is great.

You can pre-purchase either a three- or five-year servicing plan and the five-year plan costs a flat $2100 or an average of $420 per service which is very reasonable for this class. 

Servicing intervals are at every 12months or 20,000km, whichever occurs first.

BMW offers a Service Inclusive program at the time of purchase, which for $1340 covers everything – including items like spark plugs, brake fluids and other fluids - for five years or 80,000 km scheduled. The cars are also covered by a three-year free roadside servicing program, in addition to BMW's two year, unlimited kilometre warranty.