Evan,evandaalen said:Ferrari start using assembly numbers somewhere near serialnumber 80000. You can find the plate somewhere in the engine room. I believe that it represents the order on the assembly line. That's why there is no exact relation between serialnumber and assembly number. I mean, if s/n 90000 has ass# 10000, this doesn't mean that s/n 90001 has ass# 10001.