The roads are remarkably bad here. They are more like multi-lane dirt paths that people drive ridiculously fast on until their cars break (which they do often). There are no signs (actually there was one and are guide said it was wrong), so you stop every 30 minutes to ask if you are on the right path. Given how sparesly populated the country is, I guess it should not be a surprise.
There are very few bridges, so you drive through streams and small rivers a lot. Because their heights change, sometimes you must get out and make sure you can make it through.
The surprising thing is we traveled for 6 days and did not get stuck once.