I have a red top optima in my car that I use for autocross. There are a couple of things you should know.
I had to use a different battery hold-down to keep it in place on the course (I bought a simple metal piece from an auto parts store), the optima would snap the stock hold-down for some reason, and also, if the battery is allowed to move around at all, it can break the battery tray as well, especially if it is aged and brittle. These things happened not only to my car, but a couple of others, but everything happened on the autox course, so not sure if you have to worry as much if it is just for street use. I guess the optimas seem heavier or something than the average battery? I would also like to add that it is the best battery I have ever purchased, and I don't have to worry about battery acid spilling out and going all over stuff, which happens more than you think. The cranking power and power retention is great too.