I've thought about this off and on since this thread was made, and I honestly don't know. After watching the opening cinema, which I'm sure will be jaw dropping, it depends on what the initial menu offers. Most likely, I'll go into GT Mode and gape at that screen for a few minutes, drinking in the menu music. Then, depending on whether it invites me to start my GT "career," I'll start hitting up the dealers and used lots, gawking like a kid in a holiday season toy store.
Then if the option is available, I'm doing a transfer from Prologue. Sorry guys, I know there are cars I'm going to want to buy before they slip away, and darn it, I love the cars I collected in Prologue! That will be my first act if it's available.
Next, I'll grab a small car and begin the long, arduous journey through GT Mode, including
every single license test, mission, and manufacturer cup race. And with around 1000 cars... dang, will there be a ton.
I'm hoping there's a separate Career Mode, and if there is, I'm spending my life in there after I get a few GT Mode events notched on my belt.