Translated there is a bunch of difference in safety reqs going below 10s
@MOPARMAGA response is very accurate. If you are really going to race a lot become very familiar with the handbook before you start building your car. It affects everything from your rear axle stud length to how the roll bar is constructed, including material. I stay mid tens for that very reason, I simply cannot pass tech to go any faster. I would have to literally gut the car and serious changes to roll bar. I am at best a hobby racer and not at all serious.
