It's all part of the Gravity Festival which also included a major open air concert at the Inch Field by the castle last night.
Around 170 cars are taking part in the Cannonball Run which is visiting Cahir for the second year in a row.
Stephen Kirwan is one of the festival organisers – he says there will be other events for the 20,000 people expected to attend once the Cannonball Run departs.
