That’s because we have some new spy shots of a prototype for the next-generation 3-Series but there are several clues that suggest this is a prototype for a new hybrid model. The hybrid giveaway are several “Rescue” stickers located on the doors and trunk-lid--stickers that we've seen before on prototypes for the upcoming ActiveHybrid 5 and original ActiveHybrid 7 and ActiveHybrid X6 models.
Expect the new hybrid 3-Series to also continue this naming practice, which means the car should carry the title ‘BMW ActiveHybrid 3’.
2013 BMW ActiveHybrid 3-Series spy shots
However, there’s a chance that we could see a new four-cylinder setup in the ActiveHybrid 3.
BMW’s latest hybrid technology connects the engine and electric motor with a dedicated clutch mechanism, allowing either to power the car, both in series and separately. To further aid fuel economy, regenerative braking, smart navigation software that takes topography into account when deciding how much hybrid juice to supply, and electronically powered accessories should all feature.
The new 2013 BMW 3-Series range is expected to bow in late next year. Expect the ActiveHybrid 3 to debut shortly after that.