A train with rocket engines attached to it for extreme speeds. It can be used to travel quickly or deliver freight quickly.
Features:
Medical bed for whoever you hit at 200 meters per second (or if you melt your face off with the engines, it's your choice).
Electrical connectors to haul freight
A speedometer to let the lawyers know how fast you were going when you killed someone
An American flag because this only exists because of the second amendment. If you want to change it then use the select tool in the vehicle editor
Weapons, either for offensive or defensive purposes.
Sirens and foghorns to let people know to stay away from this thing (this may cause lag).
Reverse thrust can double as a forward facing flamethrower. Just increase both throttles to 100% to trade 50 m/s for a flamethrower.
Spotlights to blind anyone that tries to assault you (labeled as flash bang)
Track switch
Heater so you don't die of hypothermia
Monitor for forward view if you are in first person
Equipment for maintenance
This is my first vehicle made completely from scratch