Diesel BMW M2?! Triple-turbo, 580hp, NOS and Water Meth mental M2 M50d Acceleration & Sound by turboandstance - June 13, 2021September 18, 2022 This has to be one of the most unique builds we've ever come across. Gary Martins from Johannesburg, South Africa, is an ex BMW Master Technician who now owns his own business, Grease Monkey Motors. He has a passion for diesel racecars and this is his second custom creation. Borrowing