2005 BMW 325Ci convertible. 2.5L I6 F DOHC 24V GASOLINE REAR WHEEL DRIVE. The 3 Series is the car that defines a sports sedan, with rear wheel drive. The model delivers pinpoint handling and a snug, but impeccably finished interior. The compliant ride, punchy engine and fun-to-drive formula remain steadfast. While this version of the 3 Series BMW offers more interior room than the previous version, responsive steering and handling make it as nimble as some sports cars.