Do you know what E stands for? And most recently F? read more...
The Entwicklung series (from German Entwicklung, “development”), more commonly known as the E-Series, was a late-World War II attempt by Germany to produce a standardised series of tank designs. There were to be standard designs in six different weight classes, from which several specialised variants were to be developed. This intended to reverse the trend of extremely complex tank designs that had resulted in poor production rates and mechanical unreliability.
BMW has not explained the reason why they started the F letter, since it was first used in Bike like the F700 models. Some speculate that it is an alphabetic order after the “E” letter.
“Historically, each BMW has carried an E project number – standing for Entwicklung, or development. The numbers have then risen progressively up to triple digits, at which point F numbers have taken over.”