Despite a year-long strike by Swedish union IF Metal and its allies against Tesla Sweden, the electric vehicle maker continues to thrive.Tesla has found a workaround by bringing cars into Sweden via ferry from Germany and Poland, bypassing the union blockades at the port.Union officials are frustrated and considering blocking ferry traffic altogether, but they are constrained by maritime regulations.The strikes have affected Tesla to some degree, but the company is still heading towards a successful year in terms of vehicle sales.