Does anyone want to speculate on why there aren't more luxury hybrids out there? Lexus seems to be the only luxury company out there that is attempting to break into this market - and there, they're not really doing it with their more exciting cars. Where are the BMWs? (3-series hybrid anyone?) Where are the Audis? Porsche?

(Maybe these vehicles are out there, and I'm just unable to find them. If so - apologies in advance for my ignorance.)