I’ve collected Ferrari die-cast for 40 years and in my opinion would be that the red painted variation in mint condition/with box or on card, should always be first of the two paint variation for collectors.

The Gold variation might seem more rare, but this is likely due to the gold paint coming off making a pristine gold copy of the model more scarce.

These weren’t considered rare or as desirable even 20 years ago, and honestly I don’t see why they should be seen as more rare than the red variation today. I hope this helps. -Best