The picture on the right, shows the M630 with the first version of the V12 engine, where the
inlet trumpets were parallel to the "V" in the engineblock, which looks spectacular, although
it makes the exhaust-path a bit ackward, which is why the later versions had the trumpets
assembled in two near-vertical rows, in the middle between the cylinder banks, giving the
same angle for inlet and exhaust in each cylinder. That arrangement also allowed for the
invention of the "airbox", which Matra pioneered with the later versions of the
M650 (on M670 and onwards it became standard).