I dont see the big problem with a 4cyl BMW they have been making one for years...as long it has performance and is reliable I dont see the issue....The other thing is 1 BMW has to continue production of the V12 because of Rolls Royce, the V10 not so much a twin turbo V8 could replace it just some purists may be upset about a normal BMW engine going in an M car..but it does make sense. Ive heard the new 7 series dropped the V12 option with the new generation already, but hopefully it will get it back soon as BMW seems to be running away from high end cars, to produce a ton of mainstream low end models...which is my only issue with them right now they appear to be giving up on the high end market....and on a side note that BMW picture is again rediculous like this posters other BMW hatred articles...the V10 was just released with the new M5 and M6 BMW had that title before this engine and will have it after...a V12 BMW ismore about prestige than anything else so I fail to see how BMW dropping a V10 that it just basically got, and a V12 which is more a prestige car, will kill its title of the Ultimate Driving Machine..........