I travel within Milwuakee, so the the roads are your typical Midwest roads with some wear and tear, but mostly freeways. Obviously a few speed bumps ..I would think that's perfectly fine, unless you need to travel on really rough roads - or are a professional stunt driver
Both those pieces of equipment are tour-worthy, and built with durability in mind. I toured with my AxeFX II (and now my AxeFX III) in lightweight SKB racks, and never had a single problem. When we did gigs / tours where I wasn't handling my own gear, I always put everything in standard flight cases. However, for local stuff, and when I'm handling my own equipment, the SKB rack and a lightweight case for my pedal are all I need.
If you happen to BE a professional stunt driver, then I want to carpool with you because that would be pretty awesome.
If you can put your rack on the backseat without fear of it falling or getting knocked around, that does give it some protection from road vibration... I generally put fragile gear in the backseat instead of the trunk.
I've done what you're doing with an Axe III for about a year now and no issues. Of course it's generally good practice to refrain from throwing or tossing any gear, unless you want to toss it my way.I carry my AXE FX III and FC-12 to my band practices twice a week.Both around a 30 min drive from my house. I carry the AXE in a GATOR case and the FC 12 in another travel bag.
Is that okay? Or too rough?