One time on our car the battery hold-down came loose and the battery ended up in the fan. There was battery acid everywhere under the hood and on the paint. It was a king-sized disaster. A setup like this would have prevented the problem, and added better vehicle traction and balance to boot. This Optima gel battery gets rid of the acid and replaces it with a solid material (absorbent glassmat) making spills impossible. Optima batteries start at about $139.