Assuming there are no product holds (all the stuff you want is in-stock at the factory) and that you live close to Flat Rock, MI, it will take about 4-5 weeks from the day the order is sent into the system. Realistically expect 6-8 weeks max if you live farther away.
I live in NC and the order for my 07 GT Conv was processed on July 18. The car arrived on Aug 29, exactly six weeks from the date the order was processed.
I live about 30 minutes north of Flat Rock, MI if you take I-75 North. The GT was delivered to the dealership the morning after it rolled out of Flat Rock's 3rd shift production :SNSign: :SNSign: :SNSign: