I've been using a Dyna-Batt for while in another car. It's only 12 lbs. and it's about 1/4 the size of a regular battery. I recently put it in my Pantera and have had no problems at all although I'm not sure I'd crank it for a while on a cold day. It's an easy 30lbs. out of the front of the car. They're the same price as an Optima. I think about $150 or so. You can get then from a www.performancedistributors.com/batteries
Vince
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.