I have some that love it, while others seem to dislike it. The younger they are when you start traveling, the more adapt they seem to be able to be, as a rule.
They like enclosed spaces, so small transport cages are best. (One that will not allow them to jump around allot - or be thrown around inside of it in an accident.)
Make sure you block any sunlight that would beam down on their cage. (Heat buildup due to the sun can heat up the cage itself and the area inside the cage quickly.)
Keep the cage/carrier away from direct airflow from the air vents in the car.
Go through the drive-through ... do not stop to run in for a bite or purchase something, the sun can cause the car to heat up quickly and cause the chins to stroke-out due to the heat. The air inside the car can even overheat in the winter when parked in the direct sunlight.
Keep jars of ice in a cooler in the case of a break down or an accident. The ice will help cool them and the condensation on the outside of the jars will provide water for them to drink.
Have a light weight towel or blanket to be able to use to shade the cage in the case of a breakdown or an accident.
Protect your car seat and interior by using thick cardboard and/or a heavy blanket between the cage and the seat or fabric inside your auto. Remember ... chins love to chew on most everything, given the opportunity.
If they get upset ... talk to them softly and/or place the carry cage in you lap, (if you are not driving or in the seat next to you if you are driving) but away from direct air flow from the air vents (hot or cold).
Do keep in mind there are air vents in autos that blow air on your feet - under the seat and directly to the floorboard of the passenger's section behind the front seats. Heat from working parts under the auto can cause the floors to become heated ... do not place the cage directly on the floor of the auto.
Keep the radio on, but low in volume.
Jo Ann
P.S. Do secure the cage in place, but also protect those straps from being chewed on by the little one.