To add to u/Herald85 comment the current nomenclature is a bit more complicated, but also does make more sense now.
Pure electric models (with the exception of the i8), or in general vehicles grouped into the “LI” Group of BMW get a I in front. Therefore i3 = I01 / i8 = I12 / iX = I20
Cars in the LK and LG group have a G in front 3 series = G20, 5 series = G30, 7 series = G70. Cars in the LU group (front wheel drive) have an U in front. 2 series active tourer = U06, X1 = U11.
While for the small cars you have your similar cars grouped together, like G20 is 3 series sedan, G21 3 series station wagon, G23 Coupé, G26 Gran Coupé. For the SUVs, because there is less variation, those are near each other. Like X3 = G01, X4 = G02, X5 = G05.
The important part is, to not try to make any sense out of it. It is a defined nomenclature, there are logic things behind it, but the rest is just define as it is. There are newer cars with lower numbers than older cars etc. It just is like it is.
Source: I work for some random Munich car manufacturer.
Latest Answers