As stated above SCORE, as well as WORCS, BITD, LUCAS, and many of the other series have different tech guys that look over cage design, quality of craftsmanship, safety stuff like harnesses, suits, window nets and etc. The best thing you can do is decide what series or races you will be doing and build your car to suit.. Make sure and check the series rulebooks as most of them are different and keep up on the changes that develop between races as well. I always stress people on having fire ext. and a nice size number as well because sometimes transponder/timing devices have issues.