Before you zip over to your nearest Toys R Us to grab the Forza set, know that you can get it online:
Hot Wheels Forza Toys R Us Exclusive
With Free Shipping.
And a $10 discount.
You can buy up to 5, all have Free Shipping in the US, and if you spend over $100 you get $10 off (with a special code they provide). Factor in gas saved and you have the best deal by far. Go in with some friends and get the discount.
But if you want it today, they are also giving you the option of buying online and picking up today in store, you have that too.
So don't fret, you should be able to get one. I have no idea what options our overseas friends have, so if you can get it from other countries, let us know.