Alpina has revealed its B3 Sedan, the ‘limousine’ version of its 3 Series-based executive ‘Bahn-stormer.

With the same 340kW and 700Nm outputs from its S58 engine (BMW’s new M-designed 3.0-litre twin-turbo unit) as the Touring and an 8-speed ZF gearbox, the Sedan is able to hit 100km/h in just 3.8 seconds according to Alpina. The B3’s specification sheet has also confirmed the B3 Touring takes only an extra tenth to hit the figure.

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The B3 Sedan is then able to go on to hit 303km/h, topping the wagon’s top speed by 3km/h.

Like the B3 Touring, the Sedan’s power and torque is transferred to all four wheels via Alpina’s own tuned version of BMW’s xDrive all-wheel drive system. The brand says the B3 is designed to behave with “a rear-drive feel, but with superior traction in all conditions.”

The Sedan also gets the same options for drive modes, including Comfort+, as well as the same interior with hand-stitched ‘Lavalina’ leather. Alpina even measured the road noise produced by the tyres at 70dB for the front and 71dB for the rears in the Euro market version.

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The B3 Touring is confirmed to arrive in late 2020, but Alpina Australia hasn’t yet said the Sedan is a definite arrival. However, the brand’s local arm is “interested in bringing the Sedan variant to Australia in late-2020,” meaning there’s a good chance it’ll show up with the wagon.

Alpina Australia will reveal local specs and pricing for the Touring, as well as confirmation of the Sedan’s availability (or unavailability) at a later date.