Here’s the hottest M2 to date, which you aren’t supposed to see just yet, leaked via Jalopnik. After the advent of the original BMW M2, Munich has seen fit to augment its performance at the compact coupe’s mid-lifecycle update with the introduction of the M2 Competition, bringing with it a retuned version of the S55 biturbo 3.0 litre straight-six engine from the M3 and M4.

That brought with it 410 hp and 550 Nm of torque, driving the rear wheels exclusively in classic BMW fashion via a six-speed manual or a seven-speed dual-clutch automatic. This gives the M2 Competition a 0-100 km/h time of 4.4 seconds with the manual or 4.2 seconds with the dual-clutch gearbox, and a top speed limited to 250 km/h or 280 km/h with the M Driver Package specified.

Now then, BMW has upped the ante once again with the M2 CS, which, according to leaked info, ekes out another 40 hp from the same S55 biturbo straight-six for a total of 450 hp, bringing this iteration of the junior M car well into the performance territory of the F80 M3 and F82 M4. The M2 CS is said to do 0-96 km/h (0-60 mph) in 4.0 seconds with the six-speed manual, or 3.8 seconds with the seven-speed DCT.

Revisions which make this M2 a CS also include a new dual-branch exhaust system with electronically controlled exhaust valves, Adaptive M suspension that is standard for the first time on the M2, along with a new set of wheels akin to those on the M3 CS and M4 CS.

The M2 CS also gets a host of carbon-fibre parts. These include a carbon-fibre bonnet which weighs half that of a standard steel item, while other CF parts include the roof, front splitter, front splitter, rear spoiler, rear diffuser and door mirror covers. There will be a choice of four exterior colours; Alpine White, Misano Blue, Hockenheim Silver and Sapphire Black, according to Bimmerpost.

The carbon-fibre treatment extends to the interior, which sees the black weave also applied to the transmission tunnel console. Here, the CS treatment also mirrors those of its M3 and M4 bigger brothers in using the same sports seats. Further details according to Bimmerpost note that wheel and tyre sizes remain the same as the M2 Competition’s, with two choices of tyre fitted on Style 763 M wheels in gold or black.

Carbon-ceramic brakes are optional, according to the source. This also reconfirms earlier sources which claim a 2,200-unit limited run for the M2 CS, for which production commences in March 2020 and ends in December. More information will arrive in due course; watch this space.