Originally Posted By: HTSS_TR
Why when we talk about Mercedes we say 2005 E350, but when someone mentions his BMW he almost never says something like 2008 328i but Exx or Nyy ... I had no idea what it is. Why not just say year and model name/number ?
Another thing, BMW used be easy to know the engine size by the model name/number, such as 328i is 3-series with 2.8L engine. Now the 328i may not have 2.8L engine.
Because the chassis/engine is a better definition of what you have. If I say 1987 735i, it could be two completely different cars, with two different engines and I would still have to ask: E23 or E32?
And, FWIW, when the 745i was released in the early 80's in did away with the "engine displacement" naming scheme. The thought process of the time was that the turbocharged 3.5 made the same approximate power as a 4.5 n/a engine.
AND the 745i in South Africa had the engine from the M5! This is why chassis codes and engine codes are important.
The naming scheme has become, in my opinion, simpler. 20i, 30i, 40i, 50i, 60i in order of size/power.