You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
The Tesla 21s are not 4500. They cost 4500 plus a set of 19s they don't give you.
So you always have to consider this: if you go with 19s, you get an extra set of wheels, complete with tires, that you could sell, or sell the tires and use for winter tires if needed, or...