Sweden, Göteborg: A Tesla S car sits in the window of the Tesla Motors automotive store downtown
A Tesla S car sits in the window of a Tesla store in Göteborg, Sweden.
  • Elon Musk called a growing wave of strikes against Tesla in Sweden 'insane.'
  • The strikes began in late October, when the trade union IF Metall announced a walkout.
  • The union representing postal service workers have joined in solidarity, meaning no new license plates for Tesla cars.

Elon Musk called a mounting wave of strikes against Tesla in Sweden "insane" as unions continue to pressure the electric carmaker to sign a collective bargaining agreement with its mechanics.

The labor battle began on October 27, when mechanics in the Swedish union IF Metall walked out.