Pick 3 interesting entities for self-driving cars and draw an ER model. Do not use customers and sales as entities but rather the technology they use. Provide domain specific attributes that are needed by the company as part of its data in order to conduct its business. Have two different types of relationships (1:1, 1:N, M:N). 

I attached my project; the only thing I need to be done is question #4 which is the question right above this