Seriously, OP. Get her to the track. At very least do it once before you make your decision to keep the car or not.
I'm lucky to have a local track, just about an hour away, but I also drove ~5 hours each way to get to Motorsport Ranch outside of Fort Worth last month. So worth the time...
I hear you about the wife and kids (got three now - my youngest is just 5 months). If you don't do this already, being good about helping with the kids so she can go out with the girls from time to time goes a long way in making her okay with my track excursions and road trip weekends with the guys.
Daddy's Rocket Sled!
Clarkson: "It is... pretty much perfect... Why don't I have one of these cars?"
Harris: "The saloon is definitely
the M3 of choice."