It will start from £25,800.

The fourth generation Mercedes A-Class is now on sale. Three trims are available for now: SE, Sport and AMG Line, with prices starting at £25,800.

That entry price will get you the base diesel A 180 d SE. For a petrol A 200 petrol model, it will cost you £27,500, while the slightly hotter A 250 will start from £30,240. All come with a seven-speed automatic gearbox.

The SE, despite being the most basic model is impressively well equipped. It comes with twin 7-inch displays including a central touchscreen with MBUX multimedia system with ‘Hey Mercedes’ voice activation. Additionally the car comes with comfort suspension, 16-inch alloy wheels, DAB radio, Artico leather and Bertrix fabric upholstery, active lane keep assist, speed limit assist, keyless starting and air conditioning.

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The Sport trim line adds LED high performance headlights, 17-inch alloy wheels, Artico and Fléron fabric upholstery as well as automatic climate control. Opt for AMG Line and you'll get 18-inch AMG alloy wheels, Artico and Dinamica microfibre upholstery, a three-spoke sports steering wheel and subtle AMG body enhancements.

The 180 d models use a 1.5-litre diesel engine, producing 116bhp and delivering up to 68.9mpg combined. A 0-62 mph time of 10.5 seconds is respectable, as is a top speed of 125mph.

The A 200 is powered by a 1.4-litre petrol engine producing 163bhp. The economy return for that engine is 51.4mpg, while the A 250 has a 224bhp 2-litre petrol engine which can achieve 45.6mpg on the combined cycle, seeing off the dash to 62mph in 6.2 seconds. Its top speed is 155mph.

As well as the range of trim levels and engines, there are a number of additional options. The Executive equipment package costs £1,395 and swaps the standard 7-inch central touchscreen media display for a 10.25-inch item, as well as adding active parking assist with Parktronic, heated front seats and a mirror package.

The Premium equipment, which costs £2,395, adds a 10.25-inch cockpit display, 64-colour ambient lighting, illuminated door sills, keyless starting and an upgraded sound system. Premium Plus adds memory function for the driver and front passenger seats, multibeam LED head lights with adaptive highbeam assist plus and a panoramic sunroof.

There's also an Advanced Navigation package that introduces augmented reality into the onboard satellite navigation. Using a camera located at the top of the windscreen, it overlays the navigation display with the actual road ahead making for clearer, more obvious navigation. It also includes Traffic Sign Assist which can automatically read road signs. The Advanced Navigation package costs £495 and is only available in conjunction with the Executive, Premium or Premium Plus equipment lines.

A Class act? We'll soon find out.

Gallery: Mercedes A-Class 2018 revealed