Years ago i used a product named liquid gold to clean/revitalize the interior of my car.... can i use this product for the interior of my car

I bought it only to use on wood. Even then, it takes at least two or three dafor its "greasiness" to sink in. I doubt if it would ever sink in by itself on a car interior, but you would have to buff it a few times over a few days to make sure it doesn't come off on clothing or skin.

Does this make furniture super shiny or does it just give it a soft luster?

Depends on the wood finish. On an antique mahogany table, it was a beautiful “soft luster”. When used on lacquered wood top, it was “super shiny”.

Does it contAin tree nuts I.e almond or just scented ?

Benzaldehyde, one of the ingredients, has an almond scent. Does not contain nut products.

Sounds like this product is great for restoring but what about deep cleaning?

No, it seems to be more for surface cleaning. It does not cut through kitchen grease build up on cupboards very well. I would love to find a product that does deep clean without stripping the finish. ( Does anyone know of such a product??) Murphy oil has not worked well for me either for deep cleaning as suggested by Frank.