We've generally been quite lucky with holidays and not had any major disasters, although we have had many horrendous car journeys
filled with car sickness.
The first thing to realize when
dealing with car sickness is that in 95 % of cases it is stress related and not motion related.
My family historically has
issues with car sickness, but we continue to be very satisfied with the LEAF in this regard after 2 1/2 years — front seat or back seat.
Letting your children have their way with bags of junk food is a surefire way to end up
with car sickness.