Thursday we took delivery on our ordered 2014 JGC Overland (with V8 and ORAII). Yesterday I drove the Jeep with my old Garmin Nuvi where I could see it to compare the Jeep's digital speed readout against the Nuvi reported speed. Result: Both agree as close as I could tell. So, the Jeep is displaying accurate speeds. Nice to know, especially since the combination of the Hemi and air suspension results in going faster than it feels like.