Twin-turbo six-cylinder sedan will arrive in local showrooms during the second half of 2020.
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The Alpina B3 sedan has been confirmed for Australia, with sales set to commence during the second half of 2020 around the same time as the B3 Touring.

With the local launch still half a year away, Alpina has yet to announce pricing or specifications for the car.

Under the bonnet the B3 has a version of the 'S58' 3.0-litre twin-turbo straight-six engine that will be used in the next-generation BMW M3.

Fitted with unique turbos, exhaust and coolings systems, the B3's engine delivers 340kW of power between 5000 and 7000rpm, and 700Nm between 3000 and 4250rpm.

Paired with all-wheel drive, a modified eight-speed automatic, and an electronically-controlled limited slip differential as standard, the B3 sedan is capable of completing the 0-100km/h standard in 3.8 seconds, or 0.1s faster than the B3 wagon.

The B3 rides on Eibach springs with three-stage variable dampers, while the front suspension has a unique front pivot joint for increased negative camber.

Stopping ability comes courtesy of 395mm front discs with four-piston calipers, and 345mm rear discs with a floating-piston caliper.

Exterior changes include larger air intakes, quad exhaust tips, a boot-lip spoiler, and revised lower diffuser.

On the inside, the B3 features hand-stitched leather and a revised digital instrumentation display.