Mercedes-Benz C300 vs Infiniti Q60

What's the difference?

Australia's relationship status with the Mercedes C-Class has long been… complicated.

Over 40 years and five generations, the German midsized luxury sedan has been a paragon of efficiency and safety on one hand, but on the other, well, the quality and ride comfort haven't lived up to brand expectations.

Now the completely redesigned version has landed in Australia, with shrunken S-Class limousine styling to take on not only the BMW 3 Series, Audi A4 and Genesis G70, but rivals as disparate as the Hyundai Ioniq 5 and Tesla Model 3.

The question is? Is this latest, sixth-generation, new-from-the-ground-up C-Class good enough to take on all those and more? Let's find out.

One day Nissan's luxury sub-brand Infiniti could grow up to be as popular as Toyota's Lexus, but it'll take more than just time and brand awareness to get there – it will have to build outstanding cars that impress us, as well.

When I drove the top-of-the-range Q60 Red Sport at its launch a few months ago I called it the breakthrough car for Infiniti. Now we're testing the entry point into the line-up – the GT, which likes to imagine itself as keeping the BMW 420i and Mercedes-Benz C200 Coupe awake at night, but really rivals the Lexus RC 200t.

So, is the Q60 GT outstanding or should you ignore it and go straight to the Red Sport with its bigger engine and Sport + driving mode if you want to be impressed? And what is it like to live with when you've taken your race face off and need to pick up the toddler from day care, then do a load of shopping on the way home?

We found out pretty quickly when we lived with the Q60 GT for a week.