Bus topology and requirements for 3 cars

Hello, we look for a basic design of bus topology for three different cars: 1. small car 2. mid-range car witg modern equipment (e.g. bluetooth radio) 3. Luxury Car Your task is: 1. Find the requirements of each car to the bus system ([login to view URL] speed, car systems) 2. Based on the 3 different requirements design a bus topology. Be creative, you can use mixed busses with gateways. 3. Explain your design related to the defined requirements