Ask questions that help you make design decisions.
For example: do you regularly purchase any of these drinks (use pictures and state sizes e.g. 330ml can... - you can then size your cup holders to fit. Vacuum form a tray to fit them to contain spillages and make it removable for cleaning. Explain how it allows easy customisation with different colour mouldings....
Ask us to rate qualities like durability, ease of cleaning, soft or hard to touch, so you can choose materials that match. Ask us what colour our cars and interiors are so you choose the most universally complimentary colours..... Tell us what colours are on your Mini so we can make the popular choice the one you'd like
Do some measuring to take ergonomics in to account. I think the cup holders (which could be labelled on the illustration) might be better closer to the gearstick cut out - also needs a label.
Reference the IVA build manual to show you can understand and comply with regulations. Thinking about crash safety etc will also show a higher level of sophistication in your thinking. The same goes for manufacturing processes, packaging, waste material costs*.....
*Produce a cutting pattern based on a stock material size. E.g. how you'd cut the most side panels from a 2440 x 1220 board.