What is it? The BMW ActiveHybrid 5 is a gasoline-electric hybrid based upon the current 5 Series sedan. It combines 3.0-liter twin-turbocharged inline six-cylinder engine with a full-hybrid electric drive system. It's mated to an eight-speed automatic transmission.
What's new or notable? Combined, the ActiveHybrid 5 Series' powertrain will deliver 335 hp and will drive the car solely on battery power up to 37 mph for short distances, according to BMW.
CR's take: There are no EPA fuel-economy numbers for the ActiveHybrid 5 as of yet, so we don't know the real benefit to green consumers. At nearly $62,000, the ActiveHybrid 5 has an $8,300 premium over the BMW 535i on which it is based. It is also costs some $7,000 more than the Infiniti M35h, a direct competitor.
When will it be available? Spring 2012