Police in Melbourne are investigating a suspicious overnight firebombing at a luxury car dealership and are searching for three intruders. Multiple outlets report that the incident occurred during the night, when an attack by firebomb caused damage at the business. Authorities describe the fire as suspicious and have launched a hunt for three people believed to be responsible. Police have not indicated any confirmed motive in the reports provided, and no information about injuries or arrests is included in the summaries. The investigation is ongoing, with police treating the event as criminal. Details such as the extent of the damage, the specific dealership location, and whether any objects or vehicles were destroyed are not provided in the source material supplied. Across the reports, the key common elements are that there was an overnight fire at the dealership, it is being investigated as a firebombing, and police are seeking three intruders. Further updates would be expected as police continue their inquiries and release additional information to the public.