I recently picked up my new 2021 Mach 1. I’d be willing to answer as many questions as I can. I can tell you that the Handling package was not available to purchase on the car. I bought every option except the top stereo option. The handling package to include front splitter and rear wing and gurney flap, I had to order after the arrival. I also ordered the upgraded rims and came to find out those are also not available. They are not the 5 spoke. I attached the new photo of build site. The dealership went thru a Ford field rep and they did a investigation to find out what exactly was going. Fords response was the way I got the car is how they will come. Not to say there won’t be a second build package. But as of now you cannot get the car any other way. My avatar is my new Mach 1.