Police say they have found the vehicle connected with the latest arson attack targeting Apple Daily, in which thousands of copies of the newspaper were set on fire in Central.
Police tracked down the car in Harbour Road, Wan Chai at 2.15am yesterday.
They say it was used in the attack, which took place in Edinburgh Place on Sunday.
No arrests have been made.
That day, three masked men armed with knives burned about 26,000 copies of Sunday's issue of the Chinese-language newspaper. They threatened two workers with knives and poured flammable liquid on the newspapers before setting them alight.
Jimmy Lai Chee-ying, chairman of Next Media, which owns the paper, said: "I think [finding the car] is a very minor thing."
He had little hope there would be any arrests. The latest attack on Next Media - the fourth in 13 days - came hours after a machete was found outside the entrance to the firm's building in Tseung Kwan O.
The company condemned the attacks, saying: "[We are] offering a reward of HK$1 million to anyone who can provide information or clues that could lead directly to the [culprits]."
The news group has been highly critical of post-handover Hong Kong governments and backs calls for more democracy.
Lai said on Sunday that he and his company would not be scared off by such threats.
"There's no need to worry," he said. "It's only a childish act. This will not affect [my newspaper's editorial policy]."
Additional reporting by Tony Cheung