The glass roof option will cost new Tesla owners a cool $1,500 over the base model, and does away with the plain sunroof entirely. If you need a roof rack or satellite radio, however, you'll still have to go with the $2,000 panoramic option. If you're worried about how hot your car's interior will get will all that glassy real estate, remember Tesla claims their tinted glass blocks 98 percent of UV rays and 81 percent of heat, and drivers can always use their smartphone to turn on the AC before you even get back to the car. As with most things Tesla, the company has recently created an in-house glass technology group to handle all the glass-related research and development for Tesla and SolarCity. When the Model 3 debuts next year, it will feature a similar glass roof over the cabin.

While Tesla was in there fiddling around with the available Model S options, they also did away with Ludicrous Mode for all versions of the Model S except the top-of-the-line P100D, where it still comes standard.