Luxury hybrids take center stage

BMW already has two hybrid models in production: the ActiveHybrid X6, a full hybrid SUV, and the ActiveHybrid 7, a mild-hybrid full-size sedan.The 5-series ActiveHybrid finally puts full-hybrid technology -- meaning it can be driven at low speeds and loads under fully electric power -- into a mid-sized sedan package. No word yet on when a car like this might actually enter production.

NEXT: Lotus Evora 414E Hybrid concept