I'm taking delivery at the factory (and plan to bring 3 friends for tour). My estimated delivery and tour date is March 26th. Was wondering if it could be a week's notice for final delivery date or if I might not know until the last minute. Wanting to coordinate with friends and be able to keep some days open in case of last minute changes. I ordered and confirmed on Feb. 5th. Have they ever delivered the car sooner than the estimated date?