Power schmower. Rotors make heaps of power. But f*ck all torque, put them in a big car and what do you get? The Mazda (Holden) Roadpacer (Kingswood). The ecoboost has got torque, but its less than the atmo 6, albiet the torque curve is a lot fatter. It will still feel wrong. It will sound wrong and it will have to work its little guts out. The M5 has dropped two cylinders? Not a fair comparison. It still has eight! Plus there's the advantage of less rotational mass by dropping two cylinders. Works to a point, not here. Think about this. We all know the Nissan SR20DET is a fantastically capable four cylinder engine. Would it be right in a falcon? Or a Commodore? You could Imagine a 2J in either, but a four? It just aint right, like sex with your grandma.