The upcoming, G20-generation BMW 3 Series has been spotted running road trials again, and this time we have images of its interior. The test vehicle pictured appears to be a plug-in hybrid variant, judging from the ‘Hybrid Test Vehicle’ sticker appended to its driver’s door and charging socket flap just after of the front wheel arch.

Here, we can see the adoption of a digital instrument cluster new graphics, along with a revised interior brought up to date and modelled more closely after that of the G30 5 Series. The multi-function steering wheel also get a redesign, though the final, production iteration may almost certainly see more options, especially with M Sport trims.

The centre console is home to both the iDrive infotainment controller, as well as a new gearknob design, which is reminiscent of the one in the new 2 Series. On its exterior in front, the kidney grilles appear to have its vertical slats significantly canted inwards, which could be an indication of active grille louvres. As with its earlier sighting, the test mule still wears a considerable amount of cladding.

BMW’s platform approach here is via the Cluster Architecture (CLAR) which the G30 5 Series and G11/G12 7 Series share, and the upcoming G20 3 Series here is expected to follow suit for weight reduction and technical innovations. Here, it is expected to share more with the G30 5 Series in adopting extensive use of aluminium and some magnesium, rather than carbon-fibre as seen in the G11/G12 7 Series’ structure.

Powertrain options in the G20 3 Series should include the marque’s range of three-, four- and six-cylinder engines fuelled by either petrol or diesel, with the aforementioned plug-in hybrid options to come as well; a fully-electric variant has also been tipped to be in the works.

Along with the standard rear-wheel drive layout, all-wheel-drive options should remain, and the range-topping M3 (as well as the corresponding two-door M4) is a certainty.