Inside BMW Group Classic – the elusive BMW M8 (E31) prototype. Acceleration & Sound Misc by turboandstance - April 11, 2021May 27, 2026 Inside BMW Group Classic, the elusive BMW M8 E31 Prototype reveals the incredible ambition BMW Motorsport had for the original 8 Series platform. Unlike the standard BMW 850i, this prototype received a specially developed V12 engine with individual throttle technology, dry sump lubrication and extensive motorsport-inspired modifications designed to create a true high-performance flagship. The BMW M8 E31 Prototype also featured lightweight construction, unique aerodynamic details and aggressive styling that separated it from any production 8 Series model. After spending years hidden away, BMW Group Classic restored the prototype and brought it back to life, allowing enthusiasts to finally witness one of the brand’s most secretive engineering projects. For more content like this one follow us also on Facebook, Pinterest or Instagram!