the M3’s V8 is a terrifically advanced power unit that uses knowledge gained from Formula 1. The secret to its high-revving ability is an impressive reduction in mass – the new eight-cylinder ...

An E92 M3’s, then? A properly edgy V8 warble but volume limited and far too civilised by comparison. The V8 M5’s, surely? A creamy baritone but hardly brutish. The CSL drowns it, kills it.