Long car journey

In the back where its safest especially if you plan to go kn the motor way . Try plan your journey around her wake windows id be setting off as a nap starts maybe stopping as she wake and onec more if she needs settling but id just get it over with a little drops as possible x

Definitely in the back xx

I would say in the back xxx

In the back for sure

I would put her in the front providing you can turn the airbag off 🤷🏼‍♀️ isofix is no safer than a belted car seat

We just drove to the NL and had our newborn in the front due to space (we have a toddler and a dog as well). It was an absolute delight having him there. He could see me and me husband could touch him if he was upset. All things that can't while in the back.
Also, I know they say stop every time etc but I would see how it goes. My little boy did a 3 hour journey in one go. He was awake for the first bit and then slept (so did my toddler) so we didn't stop until we were at the eurotunnel. We have always done it this way. I might not be advised, but waking up a baby and trying to settle them again in the car can be very stressful for both you and baby.

I’ve been told by a literal child car seat expert to never have a baby/child in the front because it is so dangerous if the journey results in a crash.