https://www.cnbc.com/2018/10/23/elon-musk-says-tesla-will-eliminate-some-interior-configuration-options-for-model-s-and-x.html > Tesla CEO Elon Musk said Tuesday the company will eliminate some interior design options for the Model S sedan and Model X sport utility vehicle to simplify production at Tesla's assembly factory. > The Model X is the company's most complex vehicle in production today, in part because it has unusual falcon wing doors. Customers have had the option to configure the interior of Model X with six or seven seats and a number of options for upholstery, wood and headliner materials.