Car: Yep, you might need a “family car”, especially when the second kid hits. We have a Subaru Outback. While there are a lot of reasonable choices out there, I challenge you to find anyone with a family and a Subaru who is unhappy with the decision. $30k new, AWD for the snow, and with lane assist and adaptive cruise control the dang thing practically drives itself on the highway. Yes, a $120k Tesla can do that too (and more), but at 4x the cost.
Now here’s a cool trick I haven’t heard much talked about: night doulas. Also called night nannies, these magical individuals come to your home ~10pm and sit with your sleeping infant through the night. If the kid wakes up hungry they can either bring them to your wife to feed and then take them back, burp them, change them, etc. — or they can feed the baby from a bottle to orthogonalize schedules from when your wife will wake up with uncomfortably full breasts and need to express. Either way, it’s kind of magic for actually getting restful sleep and being able to see straight the next day. A great night doula can help encourage the kid to sleep through the night by comforting but not feeding the kid to encourage them to re-settle, and can provide feedback about how the kid is doing, tips to help them do better, etc.