I've been looking at the live streams but it's difficult to tell. How is the Tesla mounted on the Falcon Heavy? Is parallel or perpendicular to the axis of the rocket?
As pictured in answer https://space.stackexchange.com/a/24905, it is like 45 degrees to the rocket axis.
or before launch, cropped from https://www.instagram.com/p/BezcvpzAgYI/?taken-by=elonmusk