The annual TSW Printers Border Classic Touring Car Assembly will start from the Market Place on Sunday, May 21 - soon after 10am.
Cars will set off at one-minute intervals.
Taking part will be classics made before 1985 and modern classics built between 1985 and 1995.
Many people like to go down well before 10am to view the vehicles as they assemble in the town centre.
The organisers at Border Motor Club Lincs have set an upper limit of 85 cars taking part.
Drivers will be touring county roads for up to five hours after leaving Brigg.