Mercedes-Benz E400 vs Mercedes-Benz E300

What's the difference?

It is hard to immediately think of a country more suited to the convertible life than Australia. Even our coldest states (you know who you are…) are blessed with more warming sun than almost anywhere else on the civilised parts of the planet, so you’d think we’d be swanning about in dropped-top bliss almost year round.

But it’s actually in the UK (despite being cold, grey and almost always underwater) that convertibles really fly out of dealerships, with sun-starved Brits buying more than anyone else in the world. Weird, right?

Still, here they remain something of an oddity, sold in small numbers to drop-top diehards. At least partly because the convertibles of old were almost always slightly worse than their hardtop equivalents. 

But Mercedes - which makes more convertibles than most - claims to have mastered the soft-top formula with the E400 4Matic, a car it says offers all the perks of open-air motoring without any of the dynamic or practical downsides. 

It might not be as tribal as Ford vs Holden, but there’s a rivalry between BMW and Mercedes-Benz that occasionally becomes more obvious - the launch of the new Mercedes E-Class only months after the BMW 5 Series being one of those times.

But Mercedes has done something different. Instead of multiple variants and electric cars under the E-Class banner, Australia gets just one, the E300.

Is it enough to tackle the big Bavarian sedan in the sales race? We attended the Australian launch just north of Melbourne to find out.