Everything appears normal driving down road bout 45 to 50 mph. Slowed down for car n front was turning when I noticed smoke coming from under hood around headlights both sides. Then we pulled into a storage unit place. When even more smoke . I got out popped hood it was all on fire. I turned off van and a friend and I got a couple cups and dipped in water puddle and put fire out , while we were watching to make sure it restarted 2 more times. After half hour goes by and no more smoke . Closed van up found a ride home after contacting insurance company.