I leave a Janome Jem in the trunk of my car. It's in a hard molded case and the case is put in a large box lined with thick styrofoam (came from an overnight shipment of frozen meat) It has been in my trunk for several years and it's what I use on my sew days and classes at least once a week sometimes more. So far so good. It isn't a dream machine but sews great for what I use it for. I keep a tote of quilting notions, table top ironing board and big cutting mat in the trunk too and still have plenty of room for groceries and other stuff. I have a Cadallac and bought it just for the trunk space. Have you seen the trunk space in one of these? Amazing. And it's pure comfort driving too.