The reasons for enjoying a road trip can be expressed in English as follows:
"Why do I love going on road trips?"
"What are the joys of a road trip for me?"
"What are the attractions of road trips that I enjoy?"
Regarding the "fun" aspect, you might say:
"What are the pleasures of road trips?"
"What do I find enjoyable about road trips?"
"What is it about road trips that I find fun?"
