Putting GSD in SUV?

It’s a long frustrating story, but instead of getting my Tern from a LBS I will be getting it from a store that’s over an hour drive away. I have a Mazda suv, with no accessories installed am I correct this should fit with the handlebars down and passenger’s seat pushed up all the way? I’ve tried to look at all the measurements to figure it out but I just wanted to see what you guys said before I purchased and made the drive