Renault Clio vs BMW 520d

What's the difference?

I'm going to reveal something of myself here - I used to be a RenaultSport Clio owner. This is what the purists call what we now know as Clio RS, and I find myself constantly corrected yet unrepentant. It was a 172 - a nuggety three-door with wheels that looked too small, a weird seating position and a 2.0-litre naturally aspirated engine that was big on torque as long as you belted it.

It was a classic and you could still see the links back to the epoch-making Renault Clio Williams, that blue and gold Mk 1 Clio we never saw in Australia that redefined the genre. The current Clio has been around for four years now and I even drove this current RS Clio at its launch in 2013, memorable for the sudden bucketing rain that drenched the circuit and made things very interesting indeed.

This Clio was a big change from the cars that went before - slimmer-hipped, less aggressive-looking and with a 1.6-litre turbo engine, five-door-only body and (gasp!) no manual, just Renault's twin-clutch EDC transmission. It was a hit, at least with enthusiasts. Back then it was the dawn of a golden age in small hot hatches. But that was then, this is now. With a small power bump and a couple of features thrown in, is the ageing RS still at the pointy end?

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?