Originally Posted by Max Kool
That was no Aprilia, that was a Rotax engine. And even then the BMW used a different head than the Aprilia. Nowadays the G650 X is being built by Aprilia, but again with a Rotax engine.
Anyway, more pics Mr Sulu:
Rotax builds engines for Aprilia too.
From what I understand Aprilia only design and assembles bikes. All the manufacturing is outsourced.