The Complete Package consists of the Design Package (4 items) plus the Speed Package (5 items) or all 9 items together. The packages represent state-of-the-art products that have never before been offered and cannot be readily duplicated, if at all. If you are happy with your ability to design a fast car, and you feel you understand the basic physics involved, then perhaps you don't need the Design Package. In this case the speed package alone can still be beneficial. On the other hand, if you use the design package to really come up with a superior car, perhaps you won't need the speed package and ordinary lubrication will suffice. Of course, with the tremendous amount of information available in the design package, you may be able to put together an effective speed package yourself.
