Hey mate, I'm about to do the complete opposite swap than you!! I'm in the market for a new WRX in the coming months haha. The Aurion has great straight-line power so if you go on a lot of highway cruises I would highly suggest it.. (don't know about you, but I like to spend as little time as possible next to, or behind road trains.) The V6 in the Aurion is extremely reliable, my car is an ex-hire (boooo...) but I've had her completely checked out by a mechanic and Toyota, it's been given the highest grade in mechanical quality.. But really you can't go wrong with any Toyota as a family car. I use mine to cart the family around and I'm extremely happy with how it runs and fits everything. 2 large suitcases+bags in the boot fit easily. Baby seats have plenty of room. The 54960783058023 airbags give it great safety ratings :) I'm a bit of a fan but I love my Sportivo Aurion (SX6) I can only imagine the ZR6 is better!! Good luck on your hunt, buy whatever feels right!