sentences:  Aspects of the coaster's design served as an inspiration for the designers of future roller coasters, such as Screamin' Eagle and Colossus.In the 1980s, Montaña Rusa underwent a major $800,000 renovation and refurbishment for safety and ride comfort.Following the work, the original coaster builder responded with a tongue-in-cheek remark that he was "at least 80 percent sure" that roller coaster passengers would remain in the trains' seats.