I would choose invisibility as it is better than flying for example: invisibility can keep you hidden and flying is a very smart move but you aren't really that hidden and you cant see people which are invisible but the people who are invisible can see you flying while you look for them.
Saving money to buy a new car within a year is an example of a long-term goal, because it is a goal that takes a long time to accomplish and requires several stages in the process. It takes planning and strategy, and the results are not immediate.