Austin stepped down from all three board positions following his nomination in 2020. That may be the biggest clue to this spectacular piece of art. Franz von Holzhausen, Tesla's chief designer, is a huge fan of the “wedge” design. Other responses to the picture believe it is the origin of the piece of art. Typical doors are not thick enough to provide very high levels of energy efficiency. Steel doors are another major type of residential front doors; most of them come with a polyurethane or other type of foam insulation core – a critical factor in a building's overall comfort and efficiency. Steel doors mostly in default comes along with frame and lock system, which is a high cost efficiency factor compared to wooden doors. A pet door is an opening in a door to allow pets to enter and exit without the main door's being opened. There is a belief the company is trying to cut costs to get the Model 3 under $55,000 to qualify for the US tax incentive in 2023. However, some ...