For the first time ever I've decided to buy the same car again. Well almost. On the strength of my ml 320 W163 still going strong with 206k, I've decided to get a W164. But on viewing a 2006 320 CDi Sport, the log book gave an engine displacement of 2185cc. I decided to walk away there and then as the vendor could give no satisfactory explanation other than he's an accountant and bought it for his wife from new, so knows nothing about cars. Could someone shed some light on this for me, as I'm getting nowt from t'internet? Thanks all.