BMW 530E vs BMW 540i

What's the difference?

The G30 5 Series is an excellent car and unless you're looking for the serious punch of the V8 M550i, or want to run with the cops in the diesel, the 530e is a great option. No slower than the 530i, well-equipped and that rarest of things, a truly elegant BMW. Nobody buys a BMW with an eye on the budget, so at this level, the $3000 gap is nothing to worry too much about. For EV-sceptics, the range anxious or just for someone who just can't take the full EV plunge now, a PHEV is a great bridge between the two worlds.

And if nothing else, it's not a giant SUV.

Not all superheroes wear capes, and we're proud to report the 530e does its bit for green motoring without feeling the need to shout about it. And with no price or specification penalty, it's easier being green than ever before, and the pricing of this BMW really puts the cat amongst the canaries.

The G30 5 Series dates back to a time when people thought the grille on this was A Bit Much. How wrong they were. The 5, like the 3, used to be part of a clutch of executive sedans that formed the backbone of the company's expansion and success from the 1980s onwards. That means the styling is never too adventurous and even Chris Bangle's E60 5 Series, while striking, was not particularly controversial.

The only problem with the G30 is that it's hard to distinguish from its predecessor, but that's not a real issue when you see how elegant this car is. Easy on the chrome, proportional grille, big wheels, it's a proper smooth operator, visually speaking.

The cabin is holding up nicely and fits with the rest of the BMW range. It's impeccably well built, full of nice materials and even the wood trim is all right. The black Nappa leather is quite lovely but I can't tell you what the standard stuff is like, so you'll have to work that one out for yourself. It's very calm in here, with a good balance of buttons and screens with which to operate the car and while it doesn't have the you-beaut wow of its E Class rival, with its two massive slabs of screen in front of you, it has plenty to offer.

Crucially, there's nothing weird about the way the 530e looks. While some green cars look like they've been designed by one of the kids from 3rd Rock from the Sun, the 530e looks much the same as the rest of the range, save a few tiny but telltale giveaways - like the e-drive badging outside, and what looks like a bonus fuel flap tucked in behind a front wheel that houses the whole plug-in bit.

And we really, really like it. It's elegant and statesman-like from every angle, and looked especially important in the deep-blue colour of our test vehicle. It's not over-designed, with body creases used sparingly, and the occasional glint of polished silver that rings the windows and the grille adds a final sense of shininess to an understated design. 

Inside, there's more going on than you might normally find in a BMW. The hugely complicated digital display screen now includes everything from battery charge, power usage to the usual assortment of speedometers and petrol readouts. 

It doesn't feel overdone or crazily festooned, but there's more at play here than in your usual BMW.

The dash is busy, too, with a wide screen emerging from a centre stack that also houses a CD player and a digital aircon setup, which in turn sits above a complex centre console from which you can alter driving settings, control the multimedia or cycle through electric modes. It doesn't feel overdone or crazily festooned, but there's more at play here than in your usual BMW.

Elsewhere inside, the seats are beautifully designed, with a quilted leather highlight through the middle, while the gloss-black strip that lines the dash hides a dual strip of ambient interior lights that also runs across all four doors.

The 5 is almost five metres long, so as you might expect, it's big inside. Back-seat passengers have a ton of space to play with and even three across back there is doable for a distance. The outboard seats have some nice shapes to them, too, so they hold rear passengers in if the driver gets a bit ambitious. Loads of legroom, good headroom and very importantly, a good view out through the big side windows. Properly comfortable, then.

Front and rear passengers each score a pair of cupholders for a total of four as well as the same number of bottle holders. The centre-console bin is long and shallow, but does feature a USB-C port. The wireless-charging pad also has a USB-A port for those without the functionality and/or a phone too big to fit. Both the cupholders and charging pad have a sliding cover.

The boot is smaller than the standard car's as there is a lithium-ion battery hidden underneath the now-sloping floor. With 410 litres, it's smaller than a 3 Series' but it doesn't look that small. There is also a spot for the charging cable and its bag behind the left wheel arch.

As the world's motoring tastes shrink faster than a lap-banded Clive Palmer, it's easy to forget the joys of the full-size sedan, but the space for passengers and luggage in the 5 Series will have you questioning your downsizing ways.

Upfront, there's plenty of room between front-seat riders, who will also share two smallish cup holders, along with room in each front door for bottles. There's also a dedicated wireless charge pad (which, because of its tight design, is crazy difficult to actually remove your phone from), but you'll also get two USB points and a power outlet that's hidden in the sizeable centre storage bin as standard fit.

Backseat riders get heaps of space, both in width and in leg room behind the front seats. And there's twin air-con temp controls and twin power outlets, too. But middle-seat passengers will be forced to sit with their legs on either side of the raised tunnel, which will definitely impact on comfort.

The boot's still sizeable, despite shrinking slightly to house the battery/fuel tank setup

Best to ditch the fifth passenger, then, and deploy the pull-down seat divider, which also houses two cup holders. Finally, there are three ISOFIX attachment points, one for each seat in the back.

The boot's still sizeable, despite shrinking slightly to house the battery/fuel tank setup (the tank has been moved further back to accomodate the batteries), and can be adjusted to be a flat load area if you'd like, offering up to 410 litres with the rear seats in place.

The 530e commands a 530i-equalling $108,900 price tag, which is genuinely impressive when you consider all the extra bits and pieces that go into make a plug-in hybrid. That money buys you a well-equipped car, and only those allergic to money need reach for the options list.

As standard, you'll find leather-wrapped - and heated in the front - sports seats, 19-inch alloy wheels and a 10.25-inch touchscreen that pairs with a really very good 16-speaker Haman Kardon stereo. Wireless Apple CarPlay is available, but it'll cost you an extra $500. To be honest, though, we didn't miss it.

You'll also find adaptive LED headlights, a huge head-up display (so big, in fact, that it impedes vision when climbing steep hills), dynamic dampers, an auto opening/closing boot and a self-parking system, along with BMW's suite of self-driving tech - but we'll come back to that under the Safety sub-heading.

The 530e comes with a 2.0-litre four-cylinder turbocharged engine developing 135kW and 290Nm, with the eight-speed ZF automatic sending power to the rear wheels. The electric motor spins up 83kW and 230Nm, also driving the rear wheels. When everything is working together, the combined output is 185kW and 420Nm, which delivers a quick 6.1-second dash to 100km/h, which isn't mucking about.

You can choose four drive modes. EV will (mostly) drain the battery, Hybrid will keep the two working together and Sport will deliver the most power. And drain the battery, albeit more slowly. Adaptive works the averages and decides what you need or want by how frisky you're being with your driving style.

Drift around in pure EV mode and you'll be relying on the 530e's 83kW and 250Nm electric motor, which will provide what BMW refers to as "between 28 and 32 real-world kilometres".

Run out of range, or simply use too much throttle, and the 2.0-litre petrol engine comes into play, adding 135kW and 320Nm to the mix. All up, that's 185kW and 420Nm - respectable numbers by any measure, and enough to match the petrol-powered 530i's zero to 100km/h sprint of 6.2 seconds.

That power is fed through an eight-speed automatic transmission before being sent exclusively to the rear wheels, where it belongs.

The 12kWh battery takes up the same amount of space as the old one, but has more capacity, extending its EV range. The claimed EV range is 57km on the WLTP standard. 

The iDrive system has a bunch of settings that you can play with to squeeze more out of the silent-running mode and there's also a battery-charging mode button to force the ICE to charge the battery while you're on the move. Also useful is a timing system, so you can schedule when the car charges to take advantage of the cheap power available in the dead of night.

Recharging is easy but sadly a bit slow off a domestic power point. Having said that, if you plug it in after a day's commuting, you'll be topped up to 100 percent overnight. It's a long charge, but it's not as if you'll be stranded if you forget. You can get a wallbox, but there's not much point.

The fuel tank is just 46 litres. The WLTP combined cycle figure is a laughable 2.3L/100km. On that official figure, you'll cover an unlikely 2000km. My week with the car, which included 70km on EV-only power with one charge off my solar panels, got me an indicated 6.1L/100km in a mostly suburban week of driving. So based off that, you'll get about 530km from one full charge and a full tank, which is a bit confusing. Keep charging and, if you're an average Australian who travels little more than 30km per day, you won't use much petrol at all.

Having said all of that, out on the freeway, you'll probably slide towards that 2.3L/100km and make it from Sydney and Melbourne on a single tank. Just.

Like a Facebook relationship status, it's complicated. The 530e will sip a claimed combined 2.3 litres per hundred kilometres on the claimed/combined cycle, which is amazing for a car this size. Better still, it seems genuinely achievable - at the vehicle's launch, our own Richard Berry recorded a stunning 2.0 litres per hundred kilometres on a short test route.

But that's with a full load of battery charge on board. For our week with the 530e we were unable to actually plug it in (living in Sydney, I can't afford a garage), so once the initial battery charge had been used we were back to mostly petrol power. Unlike some other plug-in hybrids we've driven, we found it very difficult to recharge the battery to any meaningful level using regenerative braking, so once we were flat we stayed flat. If we had plugged it in, it would have been a two-hour recharge using a specialised wall unit, or about four hours using a normal plug.

As a result, though, our fuel use was closer to 7.0 litres per hundred kilometres after some considerable real-world testing.

The reason I like PHEVs as a tool for pushing people towards electrification is about more than the fact that it will likely cure buyers of range anxiety once they're realistic about their actual car usage. I mean it does do that, but it's more about the fact that PHEVs drive like a normal car, with few exceptions.

In EV mode, the acceleration is swift but not that brutal, YouTuber-friendly thrust EV fanboys use as proof that legacy car makers are dead. It's all very serene and very, very quiet as you move from traffic light to traffic light in near silence, while more than keeping up with traffic. The blue of the dashboard indicates your progress and the iDrive screen can keep you updated with power consumption.

The switch between EV and ICE propulsion is very smooth and it's almost like BMW has been doing this forever. You'll also discover an appreciable lift in performance, more in line with the M Sport badges. BMW's engineers have done nothing to make the 2.0-litre petrol sound better than a whirring mixmaster, though.

Slightly less M Sport-ey is the suspension. While there's absolutely nothing wrong with it, the adaptive dampers never dial things up too much for the average motorist. Granted the 5 will leave just about anything this size for dead as far as driver involvement goes, but it certainly keeps the dial closer to comfort than, say, the M550i does. Once again, it's a serene thing to get around in and passengers will love the quietness and easy flow of conversation. Or the lovely sound from the harmon kardon speakers.

You don't have to try too hard to cover a good chunk of the claimed 57km of EV range. Realistically you'll get close to 45km, even after my colleague Matt Campbell drained 20km of charge in a six-kilometre trip that he maintains was driven gently (snigger) and normally (guffaw). Without trying too hard, I managed 41km in pure EV after his attempts to ruin my numbers (not really, but I do enjoy the amusing false narrative).

There's so much to like about the way the 530e sets about saving the world, and that's mostly because it doesn't shout about it, either to the driver or the outside world.

It's very much an underpants inside its pants superhero, which makes us like it even more. Set off in EV mode, and the 530e will drift silently away from the curb, burning battery power over fuel for as many as 30(ish) kilometres. But equally important, the shift from green to gas is largely imperceptible, with the petrol engine joining in willingly when you ask it to - usual via a prod of your right foot.

It is so effortlessly smooth that you need to really pay attention to notice the eight-speed 'box changing gears at city speeds, and it's commendably quiet, whichever drive mode you're in.

Downsides? Well, it doesn't feel quite as sharp as it's conventional-engined siblings. The batteries add around 230kg in weight, which never helps, and it all feels a little softer and a little less dynamic, even with Sport mode engaged. BMW assures us the adaptive suspension setup and tune is identical, but the 530e feels noticeably softer when you tackle a twisting back road. And that encourages you to use your right foot a little more, which in turn negates the whole electric thing in the first place.

One of the great joys of BMWs has always been their ability to transform from cosseting comfort to rear-drive rocket when you want them to, and you can't help but notice the 530e isn't quite up to that challenge. But if your intentions are mostly city- and freeway-based, then this plug-in BMW is almost indiscernible from its petrol-powered sibling.

You'll want for little here, with front, front-side and full curtain airbags joining parking sensors, a surround-view camera and a self-parking system.

You can also expect active cruise control, lane control assist with lane keep assist (so it will stay between the lane markings for you), AEB and cross-traffic warning. And all of that means that, technically, the 530e can drive for you. That is, of course, if you don't mind driving like a dick - in full-autonomous mode it will swerve from lane marking to lane marking like it's playing bumper bowling.

BMW really needs to up its game, as do Audi and Porsche (among others). Munich is still sticking with a three-year/unlimited-kilometre warranty while German rival Mercedes is up at five years and Japanese competitor Lexus four. You do get three years roadside assist thrown in.

All 5 Series (excluding M5) are eligible for service plans. For $1950, you're covered for five years/80,000km of servicing. As with most BMWs, servicing is based on how you drive but really, if we're being honest, the car will get you into the dealer once every 12 months or 15,000km. Roughly.

Like the rest of the 5 Series range, the 530e falls under BMW's three-year, unlimited-kilometre warranty. There are no set service intervals, either, with BMW using what it calls 'condition-based' servicing. In other words, the car will tell you when it requires a trip to the service centre.

The batteries are covered by a separate warranty covering six years or 100,000km.