Wow! Tell us how you guys REALLY feel... 
I
was going to reply to the original argument post Vette-less started, but, seeing the "moderated" label thought better of it, but now....
To me the notion that a particular brand of a consummable product should be used on a collector car not being then judged in a Stock condition type competition on is just absurd. You use whatever works the best to get the most out of it. Then again, my vette SHOULD have been named "FrnknVet" instead of "LEFTLN" because I am not interested in that sort of thing.
Spiral gell cells like the optima were a major revolution in battery technology when they first came out, 15ish years ago. Regular liquid acid batteries have a lot of drawbacks and simple gell cells were not durable and lacked power for the size/weight. No decent REAL four wheeler or harsh condition use will have anything but an optima or equivalent as permanent equipment (I think there are some competing brands now.)
There could be arguments whether a sportscar has those same needs.
ALL batteries wear out and can leave you stranded, and a Delco is not less likely to do that than an Optima.
The spiral gell cells of the Optimas, both standard Red top and HD semi-deep cycle Yellow tops have the overwhelming advantages of being leak FREE, even if the outter case cracks, running in any positon - even UPSIDE DOWN, being enormously shock resistant, having a much more secure internal post connection arrangement and venting very little free hydrogen upon complete discharge or recharging than liquid lead acid designs.
You just can't successfully argue against those advantages.
Now conventional lead acid batteries typically have some more power and are a hell of a lot cheaper. They also have much longer available lifespans. Optimas are not supposed to last 72 or 84 months, which has been common on high end liquid lead acid batteries for decades. Advanced sealed liquid lead acid batteries absorb most free hydrogen produced like the optimas and leak less (they DO still leak relatively easily though.)
Again, some of these advantages and disadvantages are not as clearly determinate in a sports car application as they are in an off road vehicle.
The person starting this topic was both a C3 driver and a "readily modifiable" sort. Thus hydrogen build up in the cab and, more realistically important (most C3's leak so much the HINDENBURG could dump into them with little danger...:cry ) the problem with leaking acid and corrosive salts, were legitimate concerns to the original poster (and those in this forum).
I'd go with the optima, and remember to replace it every 2-3 years at maximum (4-5 with 6-7 year regular batteries). If it is running down during extended idle periods, for any battery you should consider a low amp maintenance trickle charger - even a solar one if it's kept outside or under enough incandescent lights left on. No non deep cycle battery is great at long periods of inactivity and then full recharging, although at least the optimas will not suffer conventional sulfation of plate metals to any large degree.
:confused 
