7 Rarest BMW M Cars Which Are Not Limited Editions Misc by turboandstance - October 10, 2018September 8, 2026 The rarest BMW M cars are not always limited editions. Some of BMW’s most uncommon M models were regular production or prototype cars that simply sold in very small numbers, including rare M3 sedans, M5 Touring models, the E12 M535i, M635 CSi and the legendary E31 M8 prototype. From the E36 M3 sedan and E90 M3 sedan to the E34 M5 Touring, E60 M5 Touring and one-off E31 M8, these BMWs combine serious performance with remarkable rarity. Some were produced in fewer than 1000 examples, while others never reached production at all. These are some of the most unusual and collectible BMW M cars ever created.. For more content follow us also on Facebook, Pinterest or Instagram!