Are there any roller coasters with an electrical system on the train?

Question

Are there any roller coasters with an electrical system on the train? All the roller coasters I've seen just have the track do all the work. I was wondering if any trains have onboard electricity for headlights or other effects? If so, how does the train get its electricity?

Answer 1

From a wire between the track - such a roller coaster I have

seen in my hometown last year.

Answer 2

Well, I know coasters like Rock 'n' Roller Coaster @ WDW , Led Zeppelin the Ride @ Hard Rock Park , X2 @ Six Flags Magic Mountain, and Hollywood Dream @ Universal Studios Japan have on-board sound systems, and Hollywood Dream actually has tons of little lights on the train that light up at night.  I have no idea where the power comes from...I don't think the power source is actually attached to the train itself, though.