I run an Odysey battery in my racecar and feel they are the best out there. I have owned 2 of them. The first one is 8 years old and the guy I sold it to still uses it every weekend without any problems.
One thing you might want to also consider, is putting an alternator on the car. I run one, and frankly, I wont run without it. And if you are worried about it slowing you down, my car is slightly quicker with the alternator hooked up than it is without it. The more electrical load you put on the battery, the more important that alternator becomes.