I have purple LED underbodies on the car I have now (haven't gotten my Sky yet)... I drive with them on quite a bit in MO and KS and haven't had any police trouble. My boyfriend, though, has white underbodies and has gotten pulled over for it quite a few times. I guess they like me more, JK. I don't think I'm going to put them on my Sky because (in my opinion only) the Sky is a classier vehicle and it almost seems like the underbodies will cheapen the look. I might change my mind if I saw a Sky with them, though. If anyone does decide to do them, make sure you get LEDs instead of neons -- they last a lot longer because if one light gets bumped (which could happen on a low-rider like the Sky), the rest of them will most likely stay lit up... whereas with the neon, the whole tube is screwed. This is how it was explained to me, anyway.... and they are a much better deal on eBay, I got mine from seller 'bestelectronic' and they were reasonably priced, arrived in good condition, and within just a few days.