I looked, I blinked, I looked again, and I still wasn't sure what I was seeing. We were driving next to a railroad track when I saw a vehicle moving along the railroad track, but not a train. A pickup truck. He was moving right along down the track like a train, but a truck? Trucks have tires, railroads have tracks. Tires don't ride on tracks. Well, as I looked closer I realized what was going on here. This was a maintenance truck for the railroad, specially modified to run on tracks. It was mounted with special train wheels extending out from both the front and back of the pickup. So because he had been specially outfitted, he was able to go where he normally could never go!