70mph is the speed limit in most of the freeways here in Michigan. And not many cops patrolling them. I use a radar detector when I drive long distances. Here's a problem if you stick your radar detector to the windshield - the Jeep Commander and Jeep Liberty's windshield is too steep therefore you have to fix it w/ velcro to the dashboard surface. On the Nitro, I can use the windshield but the detector is angled 25 degrees. Looks akward but it works. There wasn't any flat surface on the dashboard to lay it down. The only place I saw that might work would be the top surface of the speedometer.