I strongly doubt that. Cars simply have bigger, more power antennas because they don't have to be packaged in a phone. One of our cars has a wireless modem th

I strongly doubt that. Cars simply have bigger, more power antennas because they don't have to be packaged in a phone. One of our cars has a wireless modem that can be used for a hotspot. I've driven to plenty of areas where my phone has no service (think remote and hilly terrain), but the car still has two or three bars.