 TWR had manufactured a number of these racing V12 engines during the 1980s and they had been raced competitively , with a 7 @-@ litre version of this engine featuring in the Le Mans winning Silk Cut Jaguar XJR @-@ 9 . Five of these engines still existed , all of which were fitted with dry sump lubrication . These engines were chosen and considered to be especially useful as the dry sump would lower the vehicle 's centre of gravity . The displacement of the V12 was set at 6 @.@ 2 litres ( 6222 cc ) for the XJ220 . The engine fitted to the XJ220 concept had titanium connecting rods . 
