Even as a boy, I was impressed by the sound and goose bump feeling of my grandfather’s E32 735i. Now I have a 325i myself, which is close enough to the sound of the old big brother for me. Now the question arises, where is there the largest and at the same time tonal beautiful row six cylinder? Due to the construction it is not surprising that here perhaps the old 3.5 liter M30B35 represents the spear tip. But does any of you know a larger R6 engine? (Only from de (in the automotive sector)