No, don't take them for a ride first.
Here's what I'd do about the traps... wash them with a light bleach solution - get all the smell of other cats and fear off of them.
Wherever you feed the cats - I'd then set the traps there. Put newspaper down over the wire if you feed them inside. Pour potting soil over the bottom of the traps if you feed them outside (the traps just lift right up through it). The point is to cover the wire so they don't have to walk on it.
Put the food in the traps without setting them to trip. Get them used to eating in the traps at the time you need to trap them. If you haven't been feeding them a wet meal of food, that will entice them to eat when you want them to eat there - you've got a week to get them used to eating at whatever time that is.
The day you need to take them, set the traps to trip. Hopefully they all enter their separate traps at the same time, because pretty much as soon as one is in a trap that trips, it'll scare anyone else off.
You may want to use a particularly enticing food the day you need to trap them. KFC (no bones or skin) is a great one - as is canned salmon or sardines (no sauce). Something very strong smelling usually attracts them. Do not be surprised if they freak and bang around in there. Hurt noses are NOT unusual.
For whatever vehicle you are using to transport them, lie a plastic tarp down over wherever the traps will be placed. Peeing and pooping out of fear from being in the moving vehicle is also quite normal - so best to protect the surface. Make sure however you arrange it that pee won't just roll off the tarp onto the floor or whatever.
If they are inside a vehicle, open the windows just a crack. SOME fresh air - but not air blowing around. ALso, covering the traps with light blankets - leaving the ends open - will also help calm them a bit.
They'll be scared - they may wail - they may hunker down and go quiet - they may keep banging around to get out of the traps - we've seen it all. It's traumatic for everyone (usually) - so if you have some kind of classical music or radio station, play it for all of you as you drive.
We've driven trapped feral cats 60 miles, actually. It was not fun. But you WILL all survive.