I was under the impression that BMW had standardised their cylinders (1.5 = 3 cylinders, 2.0 = 4 & 3.0 = 6) so don't understand why the 1.5 would be taller than the 2.0 or 3.0 ?
Paul Costock, UK Plus Four 75th - Furka Rouge - Pip Disco 5 Teddy - 17h1 Irish Draught cross