BMW 6 Series Specs, Engines & Dimensions (2003–2008) — Second Generation
The second-generation BMW 6 Series combines grand touring comfort with a choice of Coupe and Cabrio bodies. Finding the right car means weighing driving character, open-air appeal and the equipment fitted.
BMW 6 Series engine choices offer different characters. Among the Cabrio examples, the 630Ci 3.0 MT pairs a smooth six-cylinder gasoline engine with a manual transmission, while the 645Ci 4.4 MT adds V8 pulling power. The automatic 645Ci 4.4 AT eases stop-start driving; all these examples use rear-wheel drive.
You may see the 650Ci 4.8 AT described as 650Ci Cabrio when comparing BMW 6 Series trim levels. That name alone does not establish every fitted feature, so check the individual car’s equipment and options to judge whether its comfort and convenience features suit you.