With the G21 BMW M340i Touring set to go on sale in November this year, the German carmaker has released a comprehensive gallery of the sporty wagon alongside its sibling, the G20 M340i Sedan. Both models will also be offered in First Edition guise in selected markets at market launch, which is limited to just 340 units for each body style – we’ll get into that later.

At the heart of both models is a B58 3.0 litre turbocharged straight-six that generates 374 PS (369 hp) from 5,500 to 6,500 rpm and 500 Nm of torque from 1,850 to 5,000 rpm. Compared to the previous, F30-generation 340i models, this represents an increase of 48 PS (47 hp) and 50 Nm.

The straight-six is paired with an eight-speed Steptronic Sport automatic transmission, with drive going to all four wheels via a rear-biased xDrive all-wheel drive system and a standard M Sport differential. Both cars have an identical top speed of 250 km/h, but in a zero to 100 km/h sprint (with launch control), the Touring version takes 4.5 seconds, while the Sedan completes the feat a tenth of a second quicker.

For cooling, there’s a high-temperature and a low-temperature circuit, plus indirect charge air cooling, but the Sedan can be specified with the optional M Technic Package, which adds two remote coolant radiators to keep things in check, particularly in high ambient temperatures.

Being the sportiest variants in the 3 Series range – at least until the new M3 shows up – the M340i xDrive cars come equipped with M Sport suspension that sees a 10 mm lower ride height and M-specific elastokinematic properties and lift-related dampers.

Pay a little more and you’ll get Adaptive M suspension with electronically controlled dampers, which offers four modes – Eco Pro, Comfort, Sport and Sport+. Variable sport steering is another standard fitment here, combining Servotronic speed-sensitive power assistance with a variable ratio that adjusts to changes in the steering angle.

Other handling-related items include an M Sport brake system, with four-piston fixed calipers acting on 348 mm vented front discs, while the rear sees single-piston floating calipers and 345 mm discs. The aforementioned M Technic Package for the Sedan replaces the front discs with larger 374 mm units. Both models come with 18-inch M light-alloy wheels by default, but 19-inch options are available as well.

For visual identification, the M340i xDrive cars get their own unique front end that is noticeable different from lesser variants with the M Sport package, and BMW says the model-specific bumper optimises cooling and aerodynamics.

Meanwhile, the mesh-design kidney grille, trapezoidal-shaped exhaust tailpipes, BMW Individual High-gloss Shadowline trim and the Cerium Grey metallic finish for the exterior mirror caps and model badge all add to the distinction.

Inside, you get sports seats upholstered in Sensatec and Alcantara with blue contrast stitching, an M leather steering wheel, a BMW Individual headliner in Anthracite, M pedals, M-specific floor mats and interior trim strips in Aluminium Tetragon with accent strips in Pearl-effect Chrome. There’s more M340i branding here as well, as seen in the lettering that appears in the digital instrument cluster as well as the front door sill plates.

For First Edition models, they come with a BMW Individual Frozen Dark Grey metallic paint finish, High-gloss Shadowline trim with extended features, 19-inch M light-alloy wheels, BMW Individual Merino full leather trim in Fjord Blue/Silverstone colours, a leather-covered instrument panel, M seat belts, BMW Individual interior trim elements in High-gloss Aluminium weave and “M340i First Edition 1/340” badging.

G21 BMW M340i xDrive Touring

G20 BMW M340i xDrive Sedan