Go karting on abandoned railroad tracks! Homemade train with dog

Please, Read my comment below before downvoting or asking about the dog

Last summer, I built this wooden rail go kart from scratch. It's powered by a 8HP 'motorised cultivator' briggs and stratton engine. It can go up to 50km/h (31mph), the speed is not limited by the engine but by the weakness of the wooden base. (it starts vibrating quite a lot around 50 km/h).
The 20km long railroad track has been abandoned for more than 10 years and is quite steep for a railroad. The maximum steepness is 20mm/m (2%) but it is often close to 10mm/m (1.5%)
Fun fact:
The last train that drove on this railroad never got to the train station, as the modern passenger train got stuck on the 20mm/m part of the tracks because of the wheels losing grip!

Summary:
0-24sec == Quick view of the railcart
24-52sec == A ride with my dog
52-1min34 == My dog running behind the cart (No abuse, he loved doing it, if he was on it he would constanly try to get off so he could run)
1min34-end == A ride from my home to the end of the track


Click here to see a slideshow with some photos of my rail cart:
   • PART 4 - Building process of my homemade t...  

Click here to see the original video:
   • Homemade train / rail cart riding on aband...  


Unfortunately, some people destroyed it and stole the valuable parts, there is not much left of it, only the wooden base and the seats

Rail cart
Trolley
Draisine