That's awesome! I'm wondering, though, how necessary it is? Have you found it to be an upgrade over standard GPS? I don't drive through a lot of tunnels, but

That's awesome! I'm wondering, though, how necessary it is? Have you found it to be an upgrade over standard GPS? I don't drive through a lot of tunnels, but I've never noticed my various GPS apps and devices struggling with them over the years. I always assumed they just more or less accomplished the same thing via accelerometer and/or extrapolating your last known heading+velocity when entering the tunnel and/or some handy heuristics (the software assumes the driver is following the path of the tunnel and not boring his own path through the tunnel wall) If NAVITIME is superior I will totally check that out just for the geekery of it, been meaning to get one of those ODB2 dongles just for the heck of it