I understand that the GLA45 is basically a front wheel drive car until it determines that it needs traction else where and it will engage the 4wd mode. However, an article I read recently stated that in sports mode it is locked on 50/50 split. Most of the time in normal or spirited driving it probably won't matter much, but I still like to know in the back of my mind to anticipate any kind of change in drive dynamics and enjoy what each mode offers. The documentation doesn't go through it with much details. Do you know if it's true?