I'm a total car guy. Please remember that bigger doesn't mean safer, especially in the marginal front impact tests (think guard rail). Also, Suvs have a tendency to roll over. I do believe the cars of today are leaps more reliable than those of 10 yrs ago (generally)
I feel your pain on the space though. You do need something that will hold that boat anchor of a rear facing child sear you will be using for 2 years.
My wife and I have 4 cars, each for a different purpose. My 2012 Hyundai Sonata Turbo was bought in the rear car seat phase. It fit the rear facing seats fine, gets good mpg and is quick. This is my daily driver. Wife Has A Kia Sorento, She Loves It And has Plenty of room. Both these cars have side impact, roll over, curtain airbags. Wife's sorento also has blind spot, lane keep and all the other controls. We also have the 2003 escalade tow rig and a Chevy SS. The SS isn't safety rated since it's just a rebadged Holden from down under.
Point of all this is I bought the kia and hyundai to use every day as family vehicles. If I had to choose any of these to be in a big accident with, it would be the sonata or sorent as a no brainer. I think the SS or escalade in an accident could get scary really quick.