Greezed Lightnin'
In 2007, eight of these Schwarzkopf shuttle loops remained in operation. In 2012, only four were still operating while three, including this one, were Standing But Not Operating (SBNO). Unfortunately, this ride was demolished in 2013. One shuttle loop, which ran as Greezed Lightnin' at Six Flags Astroworld from 1978 to 2005, was shipped to Joyland Amusement Park in Lubbock, Texas, but it was never reassembled. Its train was sold in 2017, so I doubt the coaster will ever operate again.
Several of these shuttle loops have either reopened or been relocated in recent years. Here is a list of the six still operating as of 2018: