Week 18 starts as of Monday, if you have a diary normally it tells you at the top of the page which week we are in. Normally build takes a few days. Then your car will go to Status 30 which is in transit from factory. Status 38 means it's on a boat then 40 is at UK port. If you ask your dealer to check the status on SLI he should be impressed! The important one is status 70 which means it's at the dealership! It normally takes about 2-3 weeks tops so you should have it in May!