Yup there was a definite sewing machine vibe too lol. Up close and personal they all looked like iron curtain copies of seventies puch's ( I had a vz50 in '76), but very basic, and varying engine designs, though I think the ones that look like a honda c50 lump were actually two stroke. We saw this on the way back from auschwitz and birkenhaus, it was defiinately nice to have a bit of light hearted relief after walking the camps where one and a half million people got murdered to say the least