Do the best you can with the directions given. I just went out and drove it like I would normaly. In fact I drove it a little harder than I should. But with 18000 miles on the clock... this car ROCKS. I have had no problems 0 zilch nada... no not one. This is by no doubt the fastest, funnest, and most reliable car I have owned. I have a 70 Challenger R/T 340 clone, 70 GTX 440-6 pack, 88 TSI and a 91 Stealth R/T. I prefer the 09 Challenger over all these fine cars. I have heard the clear bra will yellow after time. I got mats with mine, but have seen some really nice ones on E-Bay motors. Also its good to take it up the RPM band at a good steady pace and vary the gears you cruise in. Then just beat on it like I do LOL.