The long-running mid-size E-Class range has been tremendously successful for Mercedes-Benz for decades. Today though, sales of all cars in its category are diminished by the popularity of SUVs.

So it’s heartening that some companies still design and manufacture traditional sedans (and wagon versions), and in this case, a high quality, beautifully engineered ‘proper car’.

There’s no shortage of modern technology in the new E-Class, which is immediately evident from the carefully streamlined body shape to the fill-width dashboard of screens – known as the MBUX Superscreen.

Australia gets a limited selection of E-Class models. It starts with the E200 at $117,900 through the E300 at $130,414 and the very special, range-topping AMG E53 4Matic+ plug-in hybrid which sells for $199,900.

I reviewed the E300, which has a 190kW, 400Nm 2.0-litre turbocharged four-cylinder petrol engine, aided by a 48-volt mild-hybrid system, which can allow the engine to coast under low load conditions, or provide a handy 17kW/205Nm boost under acceleration. There’s plenty of performance available, but when pushed, the 4-cylinder doesn’t sound quite premium.

That said, the car is beautifully quiet, with excellent noise suppression as a luxury car should provide.

And proper luxury is what the E300 provides. There’s a full-size panoramic glass sunroof, head-up display, 17-speaker sound system, leather upholstery on plush multi adjustable, heated and ventilated seats, flush door handles which pop out when you approach…

In Australia, the E300 includes AMG-line external fitments. Surprise and delight features abound. In addition to the instrument screen and central control navigation screen, there’s 12.3-inch panel in front of the passenger offering all kinds of entertainment and capabilities. Atop the dashboard is a camera that can operate as a selfie-taker and as a face recognition authenticator to log you into your Mercedes account. It can also be used for participating in video conferencing on the run. Interestingly, the same camera keeps an eye on the passenger, and if it determines they’re feeling unwell, it will adjust airflow, their seat and even the interior lighting…

The strip-light around the interior pulsates to the music you choose.

Optionally, a Plus Package offers air suspension, power-closing doors, heated rear seats, an illuminated front grille, and rear-wheel steering – plus a heated front armrest.

On the road, the E300 excels. The low centre of gravity (unlike SUVs) provides confidence. The ride is beautiful, and the comfort level doesn’t compromise the impressive handling and roadholding.

The boot is very large at 540-litres and rear seat space has been increased significantly over the previous model.

With over 120 years of creating high quality cars it’s evident everywhere in the E300, with quality, careful consideration of so many elements of the design and joy in use. This is a special car.