go with 20s. I have a 2006 civic, and i had 18s on there...looked good...but then i decided to move up to 20s and wow...it was the best choice i made on my car. if you want to compare how the 2 different sizes look...check out my myspace. i have pics of my car with the 18s, and then pics of my car with the new 20s. it might help you make your decisionheres the link to myspace http://profile.myspace.com/index.cfm...iendid=3213490