depending on the wheel the difference is so minimal that you wouldn't even be able to tell. and you can't tell me a thing about this issue, one of my boys worked for Enkei and another friend owns a wheel shop where I've actually held the chrome and aluminum version of the same wheel in the same size. Depending on the wheel, there was hardly a difference and certainly nothing to hinder performance. I've done extensive research on this issue and have learned that most people just go along with what they hear about chrome slowing you down. I can assure you that it's not always the case. lol some people at this site will sell their sell soul to stop someone from putting chrome on a Contour.
