HYBRID! "DIESEL!" Arguments about which one's the better everyday fuel economy solution sound like old Miller Lite commercials sometimes. Next month in Frankfurt, Peugeot's going to show off its latest stab at mashing them together with the 308 Hybride HDi show car, and if there was ever a happy medium, this might be it. Due as a production vehicle in 2010, the 308 Hybrid combines a stingy-to-begin-with 110 HP 1.6L diesel with an electric motor that produces an additional 22 horsepower. Power's channeled to the front wheels through a 6-speed gearbox that can be operated in full automatic or sequential manual modes. The net result places the hybrid on essentially equal footing with the standard-production 308 2.0L diesel.