The upcoming BMW M5 CS has leaked online, ahead of an expected official unveiling in the coming months.
Users on the BimmerPost forum have unearthed listings for a range of parts from a pre-production M5 CS prototype – namely its bumpers, dashboard, front fenders and bonnet – advertised on a Polish auction website.
Despite being for sale in Poland, the orange reflectors on the edges of the front bumper indicate the parts have been taken from a US-market car.
Those familiar with the look of the ‘standard’ (or LCI, in BMW parlance) M5 Competition facelift will spot few differences between it and the leaked CS flagship, with carryover bumpers, front quarters and bonnet merely complemented by satin gold trim around the kidney grilles, and ‘M5 CS’ side and rear badging.
Interestingly, the dashboard in the listing features the digital instrument cluster and freestanding infotainment touchscreen from the outgoing, pre-facelift M5, rather than the more advanced, newer systems offered in the LCI model.
However, given the M5 CS isn’t slated to enter production until early next year, and these parts have been lifted off a pre-production model – which, by law, must be scrapped once development has been completed – it’s likely BMW engineers opted not to fit the newer technology systems to a development car eventually set for the junkyard.
The auction listings don’t offer a look at the M5 CS’s wheels, though they’re expected to be unique to the limited-run flagship, with a look likely similar to the multi-spoke gold alloys spied on an undisguised CS prototype in October 2019.
It’s expected the model will receive a range of other unique weight-saving touches, including a carbon-fibre-reinforced plastic (CFRP) roof, CFRP rear lip spoiler, carbon-fibre-backed front sports bucket seats, a middle rear seat delete and lighter interior trim pieces, as per previous CS models.
Under the bonnet, according to BimmerPost forum user and reputable BMW insider ynguldyn, the flagship M5 will feature a tweaked version of the ‘standard’ car’s 4.4-litre twin-turbocharged ‘S63’ V8, tuned to produce 625 imperial horsepower (466kW) – a 6kW bump over the Competition’s 460kW/750Nm outputs.
The existing eight-speed torque-converter automatic transmission and variable all-wheel-drive system are expected to carry over to the CS.
The 2021 BMW M5 CS is expected to make its full public debut in the coming months, ahead of a rumoured production start in March 2021. Insiders suggest the model will only be made for a single year, with production ceasing in February 2022.