Police are investigating a driver who uploaded an expletive-laden YouTube video in which she threatened to kill a group of cyclists in Hamilton, New Zealand.

The 19-year-old woman, Samantha Brown, filmed the four cyclists biking along a road near Taupo.

"I'm going to go to jail on a murder charge. Hit and f****ing run in a second," Brown screams as the video runs.

Cyclist Wayne Attwell believes New Zealanders have an anti-cyclist culture, after a group he cycles with featured on a YouTube video that went viral where a driver repeatedly threatened to kill the cyclists.