I have been to this car show the last 5 or 6 years in a row and it only gets better every year.
Friday night is a scheduled cruise around Chatham, leaving the Union Gas Head Office. If the weathers nice, there will probably be hundreds of cars. Then at 9 pm, an outdoor movie (Dirty Dancing) in Tecumseh Park, downtown.
Saturday is the car show on King St. downtown. When the weathers is nice, there can be 500+ cars.
Sunday is a gathering at Dukes Harley on the 401 and 2 for 1 tickets into RM Classic Car Exhibit. This museum is awesome and you get a tour through the shop where they restore these amazing classics.
Anyway, I'll be there and I'll be watching for other Canadian Ponchos.