He was Julian Warene Bragg, 50, from Invercargill.
The crash happened on State Highway 1 in the Greenhills area on July 13.
A witness said the truck was a chip liner and trailer, and the trailer was on its side.
The car was "unrecognisable" under the front of the truck, they said.
An investigation into the circumstances of the crash was ongoing, police said in a statement.