The Vauxhall Zafira was left on Woodland Terrace in Charlton by Ghazi Hassan, who was visiting his brother on Wednesday night.
He said this "wasn't a good day" but was "thankful" his family were not hurt and no-one else was injured in the incident.
BBC Radio London has reported speculation that the collapse could be due to recent heavy rain.
A car has fallen down a huge hole in a street in south-east London.
Car falls down huge hole in street in Charlton, London
A Large Hole Opens Up In The Road In Greenwich
Car Drops Into Sinkhole On London Road
Sinkhole swallows car in London street
London sinkhole partially swallows car
Car Drops Into Sinkhole On London Road
Sinkhole swallows car in London street
London sinkhole partially swallows car
Giant sinkhole swallows street in London suburban