i think the key here is choice. if you had a choice beforehand then there's free will. re the civic owner, he can choose not to sell it. the fact that he sold it for a mere P150k shows that he has exercised his free will.

its different in a situation where a gun was poked at the owner and forced to execute a sale of the car. well, he can choose not to but that would endanger his life. this would be a sufficient reason to negate free will.