You should probably define what makes a car "nice", and also quantify the "too much money".
Qualitative words are often not welcomed in maths/science in general, because people can disagree on their meaning.
So, for example, if you change the sentence into
"A report states that 32% of New Jersey residents think that mercedes cars cost 30% more than they should"
Then everything would be "fixed", and there is no ambiguity anymore