Final answer:
The question fragments related to probability are incomplete and lack context, which prevents computation of the requested probabilities. More information is needed for a precise answer.
Step-by-step explanation:
The provided question seems to involve probability concepts, particularly conditional probability and probability distributions. However, the specifics of the question are not clear as the excerpts given do not contain complete information regarding the situation described in the student's question.
Without knowing the probabilities of cars having specific features or being of a certain model, it is impossible to calculate the requested probabilities. More context is needed to provide an accurate solution to this three-part probability question.