Garmin GPSMAP 66 series announced on 2018-08-06 in GPS Posted August 28, 2020 · Edited August 28, 2020 by _Art_ I’ve always had a cheap Garmin Nuvi for the car. At this time, an old Nuvi 42 worth $100. Never thought to stick a top map card in it until now. It turns out in practice far more capable than my 66. I can’t make it crash! Not a useful battery or form for mobile use. Even landscape orientation is not ideal for hiking, but the software is good.