When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
How are big rigs allowed to have diffrent colored lights right behind the cabin, before the trailer, but cars are not?
I understand why the lights we have are a certian color and that there are laws, but why are they allowed to have, as it seems, any color they want there?