 The price of Neodymium went through a price bubble due to Chinese export restriction in 2010–11, rising from $50/kg at the start of 2010 to $500/kg by the summer of 2011.This resulted in 'demand destruction' as many producers quickly turned to substituting induction motors in their cars to defend their production line.This was in spite of such motors inferior 'power to weight' ratio attributes significantly impacting all but the most powerful (energy guzzling) motor sizes, e.g.