Just as a point of information, my 1.5 year old Braille 15 lb battery popped the engine right over this morning no problem. It was 18 degrees when I started the car. Battery did great, but boy the suspension felt hard, dont know if it is the tires or coilovers, but I could really feel the road. Hey the other thing I noticed for the first time this year is the "innercooler" effect of cold weather. Feels like I have picked up 10 hp or so when its cold outside. This thing really scoots when its cold out.
Ed