I'm looking to buy a used car, but I'm torn between these three

Option 1
ix3 msports
52,000 km / 48 million KRW (agreed to a 1 million KRW discount)
BMW Certified Pre-owned
Option 2
Model Y Juniper
12,000 km
48.5 million KRW / Private transaction via Karrot Market
Option 3
320i Touring Base
39.9 million KRW
7,000 km
BMW Certified Pre-owned
To be honest, it feels like the Model Y is the logical answer, but why do I want the ix3 so much? I love navy, and this one is navy with a beige interior.
My head is pointing toward the Model Y, but my heart is with the ix3... Since it's for a family of three, the 320i Touring is also almost like a new car and the price is great, so I'm stuck in an infinite loop of indecision~
A baby is due in October, so what would be best for a family of three?