It seems like everyone and their dog has an opinion on what kind of replacement battery you should get for a car. I have heard some glowing reviews for the Optima Red Top, and some terrible reviews of it as well. What is your favourite car battery? Why? What do you think is the best bang for your buck? To me, a battery is something that's worth a bit extra if it is going to provide a sure start and no surging lights to loud music.