reserve is the most important thing to consider. especially on newer electronic vehicles. i wouldn't go for high ccas. 450cca is factory and they work just fine in this area of the country, so i would stay in the 450 to 750. to get higher ccas, you need more plates. to get more plates to fit in a battery means thinner plates and less acid. acid keeps the battery cool and heat kills batteries. thin plates are more prone to breakage through vibration, which kills batteries.
ige tlca #1431