BMW 6 Series vs M635 CSi - specifications
- 1IntroductionBMW says its new 640d will be the best-selling 6 Series ever. How does it match up against legendary eighties M635 CSi?
- 21st BMW 640d Coupe M SportPowerful and efficient diesel makes new luxury coupe unique in its class
- 32nd BMW M635 CSiIs the eighties GT legend still great after 25 years?
- 4Facts and figures - currently reading