Tesla (TSLA) late Thursday launched a new base model Cybertruck at $59,990, but CEO Elon Musk says it won’t be available for long. Tesla stock fell slightly Friday morning. The $59,990 dual-motor all-wheel drive Tesla Cybertruck has cloth seats. It also has reduced towing as well as scaled-down suspension and audiovisual features vs. the $79,990 premium AWD Tesla Cybertruck. Both AWD…