2020 BMW I3 vs 2017 BMW 535i

What's the difference?

It’s easy to forget BMW was paddling into the growing electric vehicle wave when it was only a gentle swell. It took off early with the i3 city car, which believe it or not has been in the Aussie new car market for six years.

While the German maker has long been developing the concept of electrified powertrains in existing models, the i3 was the result of a dramatically different approach, showcasing the use of exotic materials and innovative packaging.

Like its i8 supercar sibling, the i3 won’t be replaced with a new-generation version, but BMW says it will continue to develop this high-tech hatch before it departs, and we spent a week in the sporty i3s to see how it stands up in 2020. 

Eco-friendly vehicles are the leather pants of the new-car world; it takes a lot of money to make them look good (but people who own them think they look fantastic regardless). If you don't have a gazillion dollars to drop on a Tesla,  then it's a one-way ticket to Prius town. And really, who wants that? 

But what if it didn't have to be that way? Behold the BMW 530e iPerformance.

Seemingly tired of waiting for the Australian Government to introduce any sort of meaningful subsidy for green cars, BMW has made the choice simple: you can have a petrol-powered 530i for $108,900, or opt for the plug-in hybrid 530e for... $108,900. This is truly revelatory thinking.

There's no specification penalty, either, and the hybrid will power to 100km/h in an identical 6.2 seconds, so you're not even any slower. But you are sipping less fuel, emitting less C02 and basking in the general smugness, and sweet silence, that comes with feeling like you're saving the world.

So what's the catch?