I'll echo the sentiments about kids and space. I thought I wanted a crew cab mid-size truck when we were expecting our second child. I knew I needed a bigger back seat than my extended cab Titan to fit a booster seat and rear-facing car seat. I ended up buying a crew cab Sierra and was amazed how fast we ran out of space on trips. Those crew cab mid-size trucks have a back seat that's roughly equivalent in space and comfort to a quad cab Ram or double-cab GM.