BMW M440I vs Infiniti Q60

What's the difference?

Without a whole lot of fanfare BMW has slipped yet another model into its Australian line-up.

Sitting alongside existing coupe and convertible variants, the new 4 Series Gran Coupe follows the template established by the previous gen version. 

A sports luxury four-door with a sleek, fastback twist, it provides a more adventurous alternative to its close 3 Series cousin. 

Offered in three grades, this is the M440i xDrive, the 3.0-litre, six-cylinder, all-wheel drive 4 Series Gran Coupe flagship. 

It competes with premium all-wheel drive four-doors like Audi’s S5 Sportback, the Jaguar XF P300 R-Dynamic HSE, and the Mercedes-AMG C 43.  

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.