J.R.
Hi M.,
We did buy with a Mazda 5 and have 2 carseats.
To be honest, it is not realistic to transport others. We do it very infrequently and it is a big pain. You either have to take off a car seat to get the person in to the back seat or they have to be very flexible to climb through the back or through the narrow space between the two seats. The back seats are not super comfortable and definitely not advisable in our family for long car rides.
I hope this helps. In all other aspects we do love it. We live in SF and love to "small" mini van. Easier to park than a regular size mini-van. I love the sliding doors.
feel free to email with any other questions.
Jenny Rosen