Tesla conducted research and their data and analytics team was able to observe that people only opened up their trunks 3/4 of the way. In a cost cutting effort they now utilize hinges that open the trunk 3/4 of the way saving them 1/4 of money. The money saved is being put back into researching other cost saving measures. Rumor has it the 2025 trunk lid will open at 50% of the original height.