 We purchased our 2011 BMW X5 SUV in 2013 with 12,650 miles and maintained it meticulously to approximately 95,000 miles when the engine had a total catastrophic failure in Long Boat Key, Florida.  The vehicle was towed initially to a BMW repair shop (Tuffy's - kudos to them) and then BMW of Sarasota where it sits today.  Total catastrophic failure (suddenly wheels locked, engine died, could not be restarted) was completely unexpected for a well maintained luxury vehicle with only 95,000 miles.