Swindon Street Cruise, the modified car club, will be holding a big meet-up at Queens Park on Sunday 23 June, 11am-5pm.
Five local Swindon bands will provide musical entertainment.
Matthew Pearce, volunteer coordinator at the Queens Park Cafe said: "This is a first for Queens Park. We hold music concerts each Sunday at the park from 3pm to 4pm, but this five hour musical extravaganza is a new venture. We are very excited to see the park used in this way."
The park, which celebrated its diamond anniversary following the opening dedication by the Queen in 1953, is mainly run by local residents who volunteer to maintain the gardens and cafe in partnership with the Borough Council.
See poster, right, for details.