What a lovely web experience! I adore the style and artistry of the illustrations here, and the attention to detail to the little things like the clack of the wheels increasing in frequency with the speed, the squeak of the brakes and the different noise when the tram goes over the wooden bridge etc.
I do wish there was a small prompt on screen right at the start with an indication of how to start off the animation. I clicked, dragged and swiped everywhere on the screen before I finally clicked the (i) button to see it was all keyboard driven! :) But perhaps that was deviously intentional, as it gave the site time to load up all the assets it needed in the background?