Can I delete hot wheels without corrupting my FH5 game on xbox

Yes, you should park your car back in the general world before doing so just to be sure you don't get stuck and have to reinstall to access your game

I've had the game since release with VIP Pass and the Expansion Pass. I had been able to play Hot Wheels expansion without a problem until today. I can get into Blizzard Mountain but if I try to access Hot Wheels it suddenly now prompts me to purchase the
expansion (even though it's installed already as well...). Even tried just loading up the game on my 2nd xbox to see if it had some kind of corruption but no, can't get to Hot Wheels anymore. Have no idea what to do but am frustrated like everyone else here
.

In this case, you may need to reach out to Forza Support because I can confirm that as long as you have purchased the Forza Horizon 5: Hot Wheels you don't need the Forza Horizon 5 Premium Add-Ons Bundle, the bundle itself includes the expansion but you're just required to have the game installed.

Can you please validate if the expansion pack was purchased successfully under the account that you're using? Here you go:

1. Go to Profile & system > Settings > Account > Payment & billing.

2. Select Order history to view your purchases.

Hi, I hope you're doing great despite the issue you're experiencing. I am an Independent advisor and I am here to help you in regard to your concern.

Please make sure that the expansion pack is installed on your games and add-ons by following the steps below:

In your games list, focus on the game Forza Horizon 5, press the Menu button on your controller, and then select Manage game & add-ons from there click the game icon and from there you will see all the packs that you need to install. Make sure that it is installed.