Charity Cruise Question

I need an opinion, from someone other than the know it all that I'm dealing with.
The American Legion I belong to has a car show every August. The show generally draws about 50 to 90 cars.
The show generally runs from 12 to 4 p.m. on a Sunday afternoon.
We also have a Needy Kids Program that, until this year, had a sponsor that was happy to give to us.
We need to raise some money to fund this program.
I suggested that we attach a "Fun Run" or cruise after the car show.
We charge an additional $ to the car show and we go on a cruise afterwards.
I've actually worked out some of the logistics of this.
Here's were I need your help/suggestions.
Do you think that having the cruise after the show is a good idea or do you think that the participants would to tired and we should do it on another date?
I'll list some pro's and cons for both arguments after I get your feedback. You may think of something that I haven't

i'd rather have a cruise before the so that ends at the show.

I've been involved in several cruise/shows over the years, always found that it was better to have the cruise before the show, personal preference.

I'll get there whenever you need me there, but I want to leave when I want to leave

(Translation, do the cruise first)

Do the cruise first

An understanding and generous City Council would be a necessity if the cruise included a high visibility route.

There was an excellent car show at the Legion in Danville, Indiana this past summer. It was very long, something like 9 am to 4 pm. The bright side was that the Legion opened a bar outside at 11 am! Good thing I live real close, and a real bad idea to have a cruise afterwards!