I preoredered the game at GameStop but I didn’t get any code for the Gallardo Superlaggera and I just noticed that I never got the code, is there any way these cars will be available in the future? I really want the Gallardo but you can buy it 
Go to the retailer and tell them. They may still have a code for you, and would have the record of your purchase.
This is something you should be taking up with Gamestop. If you didn’t get a code when you should have, then contact Gamestop.
As for the cars being released in the future, there’s always a chance. As I pre-ordered mine on the Xbox One we didn’t get any pre-order car which is a shame. I want to get my hands on the Superleggera too.
I got 3 pre-order cars from Amazon,seems i’m lucky. (Superleggera,Audi and a BMW)
Bet you don’t have the Superleggera laying around still though 
You won,Barney 
If you dont mind,i’ve seen this codes last week on ebay for small buyouts…
It’s been quite a while. ASk Gamestop and hope they still have codes left. Also, from what I’ve heard, several gamestop were giving codes saying it was the Lambo and they turned out to be Audi Avants.
I have pre ordered the game and haven’t gotten the Lamborghini Gallardo, but my friend has. Forza can you send me one my gamertag is Baxtermaxx.
You need to contact who ever you pre ordered the game from