Honestly do not know how it happened. I came home from work and it was fine (or so I thought). Next morning, I'm leaving for work, and as soon as I pull out of the drive way, I notice the rear wobbled like crazy. I thought I was imagining it, but when I did a quick zig zag, it wobbled again.
Luckily I worked at a Ford dealer at the time that was less than 10 miles from the house. Nursed it in, and had it replaced under warranty. It was the day before I went to the spring Talladega race last year, and they had to get the part delivered overnight so I could take it on that trip. In the meantime, I tried out a plug-in Fusion, and was able to ride home and back to work in one charge, lol.
My guess was that I sometimes like to "power" (low 3rd, mid 2nd gear depending on time of night) the last corner (90 degree right hander) before I reach the house. It is a bit of a change in angle from a flat road to a short uphill. I'm thinking that may have caused it to snap, but I didn't notice any loud noises from it breaking, even when pulling into the driveway. I didn't have any crazy bitches mad at me, so the techs and I didn't assume any foul play especially the way the bar was severed. I doubt it was from all of the autocrosses either because I haven't heard of people with stock suspension snapping theirs. Even the techs were a bit puzzled on how it would snap from a regular drive home (they knew that I do the autocross stuff as well).
