Whoa! Yes, it looks like carports or garages are definitely in order now. I wonder what else can be destroyed by a lightning strike.
One of my current Sims was hit by lightning while doing gardening during the first autumn season. I just about had a heart attack, especially since she had the soaked moodlet from working in the rain, but aside from getting knocked on her rear, staggering a bit and getting singed, she was fine.