Ah, you're going to really like it anyway, trust me.

But congrats on the purchase, and yeah it's pretty sweet seeing numbers like that right out of the gate.

Just be prepared for the fact it varies a lot by conditions, so short trips will drop your FE significantly (like running around for a bunch of errands), and when winter comes it'll show. I'm still trying to work off last winter's low mileage tanks!
But just can't beat seeing those 40+ numbers in such a nice car!