Check the last uploaded picture..

how do i spawn it? because i can't spawn anywhere

how do you connect it to other carriges

How long is it so i can edit the build area as 128 is the max area size

The speeds of this thing are hideous! Tired of long ass train trips between islands? This train is exactly what you're looking for! Also I'd like to leave a couple of comments. Since the train is so fast and has no change track button, you'll have to preset all the turns before actually riding the thing, otherwise you'll just hit a wall of a depot. And also on turns the train tends to damage you, so alongside disabling Vehicle Damage, disable Player Damage aswell.

Good