I'm more concerned about cleaning up the road grime and other assorted crud and/or stains in the engine bay than fretting over whether the battery matches the door trim.
The Optima is nothing more than an additional step to ensure that there's one less thing to go wrong. All I care is that it works (bonus points in that it won't rust a steel battery tray either).
There's nothing improper about them, unless - perhaps - you're dumping them into a certain Mopar vehicle that requires agonizing over the block ID pad and damper plate before purchase.
Last edited by cudak888; 12-24-2011 at 02:35 AM.