Alpine is expanding its model line-up with the introduction of a A390, a new five-door fastback that's set to go on sale before the end of the year.

Billed as a "racing car in a suit", the A390 is said to provide a high level of performance and driver engagement while also offering versatility.

It has similar dimensions to a Polestar 2, providing space for five occupants and a 532-litre boot.

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The Alpine A390 uses a triple-motor powertrain with all-wheel-drive. It will be offered in two variants: GT with 400PS and GTS with 470PS.

Alpine claims a 0-62mph time of 4.8 seconds for the GT and 3.9 seconds for the GTS.

Battery capacity is 82kWh - enough for a 345-mile range. It uses 400v architecture, rather than the more advanced 800v setup found in some models. Alpine says DC fast charging can still reach 190kW, but its intelligent charging management allows it to recharge in less than 20 minutes, to recover two hours of motorway driving, and go from 15% to 80% charge in less than 25 minutes.

The cockpit is driver-oriented, utilising Renault-derived screens. There's a central 12-inch touchscreen display, facing the driver, along with a fully digital instrument cluster. Physical climate controls have been retained, although switchgear is minimal. Most of the interior surfaces are wrapped in leather to give a more premium feel.

UK pricing is expected later this year, while sales are expected to commence in Q4.