The 1M that BMW should have built - E82 1-Series $26,000 M5/M6 S85 V10 and SMG engine and transmission conversion
The 1M is a fairly light and well balanced BMW that makes for an excellent drivers car. The problem is that it does not have a real M motor under the hood so from an M purists perspective it is not a complete M car. So in comes TJ Fahrzeugen who for $26,000 will swap in the S85 V10 motor with an SMG transmission into an E82 1 Series. Add 1M body work and you have an M vehicle that BMW simply does not have the balls to build.
There is a weight penalty with the SMG transmission and V10 motor of 130 kilograms or 286 pounds. Definitely a significant weight gain but it is worth it for the glorious V10 capable of over 8000 RPM and the 550 horses it packs mildly tuned in this application.
This conversion can be applied to basically any E82 1 Series as the vehicle you see pictured below started out as a 123d. A V10 naturally aspirated high revving 1-Series? Perfect.