Toyota are very reliable, so no problem there.
Considering how many leaky diapers, spilled milk, and vomit babies can generate, I would put off the new car until your youngest is 8 or you hit baby #4 (we had 3 kids in a Yaris, so you'll be fine)
2013 has latch, but latch is also only for infant car seats more or less, and all these flashy "smart detection" car safety still has to prove its effectiveness.