Drove car and heard loud noise issuing from the passenger side rear. Upon viewing the wheel was angled in at the top. After removing the wheel I found the rear crossmember subframe axle had a complete break in the weld holding the angle from the straight part of the beam to the wheel and suspension plate. After going online to see if similar issues happen on the same side of the vehicle, I found many reports of weld failures on the same side at the same joint. This is an EXTREMELY dangerous weld failure–if it had happened during highway travel the potential for catastrophic injury or death is high, in my opinion. Please investigate other reports to the NTSB about this make and model, and please search model years on or about 2007-2012 as other scion owners have had the same issue. This is a one owner car, we purchased it new in 2009. The opposite weld is also showing signs of stress, but not broken or cracked.