BMW is and was a turbo pioneer, exactly what Judah stated, the 2002 OBRUT, the 'Turbo'Prototype(which looks like a M1 a bit)
The 1973 2002 Turbo, Van Halen couldn't have said it any better:
And for example this engine from 1983, a 'basic' 4 cylinder turbo engine.
It was placed in the Brabham BT52 and became world champion in the Formula one that year, producing up to 1,500HP.
But no BMW doesn't have experience with turbo engines, not at all....