I'm a guy from Hungary (so sorry for my possibly poor English in advance), planning a 6-month trip to the US with my girlfriend, maybe next April-September (or the same period in 2014). Since I still have plenty of time, I'm in the early planning phase regarding the route, car, lodging, budget, etc. and appreciate any help from the experienced visitors of this forum.
My basic idea is to do all the cross country routes and the two coast routes from the Road Trip USA website (www.roadtripusa.com, I hope it's okay to post the URL here) with some detours and changes here and there, in two loops starting and ending in St. Louis, MO. The plan is to have a "driving day" approx. every 3 days where I would drive between 400-700 kms, then stop and explore a city/area/national park for 1-3 days. So my first question would be if this route is at all feasible, or is this too much for just six months?
(I'm aware of visa, car rental etc. difficulties, but as a first step, I'm trying to put together a rough plan for the route I'd like to cover.)