
What I do with a new puppy is literally take him(all mine are males) everywhere with me but at the same time I train him in the car as follows
The day after he arrives take him after the am feed & toilet etc & sit in the car with him(hopefully he will sleep after being to the toilet, playing & being fed) I also crate puppies in the middle of the car for this so I can see them(I have a transit box which is solid so cannot see what he is doing in there)
I do this after every feed(LOL I used to take two weeks off work to do this)
If the puppy is ok I will also take him on little short trips, if he isn't then I start the engine & sit in the car for 5 mins so that he gets used to the smell & noise but no movement, as he gets used to the noise etc & starting whilst he is asleep I drive the car up & down the drive once. This process I extend so that the puppy learns the car means being with me & going to sleep
I do think crating is not only the safest way to travel dogs(I know of a dog wearing a harness that was crushed in an accident) but also helps them to settle in the car
I haven't had a dog that has been car sick for over 20 years using this method & the one who was car sick, was actually being jumped on by his sister & when separated from her in another cage was fine
There are various herbal & non herbal products that can help & one old wife's tale that I know has worked for some people is to line the flood of the carte or luggage bay of the car or car seat with brown wrapping paper-don't ask me why but it dd. Ginger also calms tummies & I know a few obedience people who give their dogs ginger biscuits & they appear to work