Mercedes-Benz A200 vs Mercedes-Benz A250

What's the difference?

Meet the world’s most aerodynamically efficient passenger car. Mercedes-Benz says the drag co-efficient for this new sedan version of its fourth-generation A-Class is the lowest ever measured for a passenger vehicle.

Which is quite a claim, but you only have to look at it to see how much work has gone into marrying good looks with slippery aero performance.

The A-Class sedan is substantially longer and fractionally taller than its hatchback sibling, but does that mean it’s better, or simply different?

Hybrid is no longer a dirty word.

Australians have now embraced the semi-electrified powertrain in a big way, with the popularity of eponymous fuel-sipping Toyota hybrid models speaking for themselves.

But this sales-volume love has not extended to the tangled and often confusing world of plug-in hybrids, which puts Mercedes' latest offering in a bit of a tough spot.

The A 250 e is the late-arriving plug-in hybrid variant of the brand's popular A-Class range, and it offers some innovations which make living with an electrified car a lot more convenient.

With a tall asking price, though, is it a step too far into the electrified landscape, or a compelling option for Australians curious about electrifying their daily commute? We drove the A 250 e at its local launch to find out.