Citroen Xsara Another outstanding year for new car registrations in Spain, up a splendid 18.8% to a 2nd straight all-time record volume at 1.385.791 units. Renault (+23.1%) manages to outpace the market to consolidate its brands domination at 14.2% share vs. 11.7% for Seat (+13.6%) and 11.2% for Citroen (+15.8%).…