The Republic of Palau is an island country in the western Pacific, in free association with the United States. In one way or another, the country has been under US administration since it was established, and has never had its own separate currency - it has always used the US Dollar. However, Palau allows some foreign mints to issue coins under its authority; these are denominated in US Dollars but are only legal tender in Palau, so can in a way be considered to be in "Palau Dollars", even though such a currency does not officially exist.
The coins are usually dedicated to historical or general popular culture themes not related to the country itself. Many of them are in the internationally popular half gram (0.5g) of gold collector format.
The Golden Classic Car is part of the large Golden Highlights series of specially shaped gold mini-coins by CIT Coin Invest.
The Mint says about it:
"Our previous Black Proof issues that featured an Anchor and an Airplane Propeller were immensely successful and both were sold out issues. The third issue features a classic car that will bring you back to the days of highway cruising. A smaller gold coin featuring the same theme is released alongside the larger silver version. By utilising the enhanced smartminting technology we are able to beautifully illustrate the shape of a classic car on a 13.92 mm diameter surface while keeping the weight at 0.5 grams. The perfect piece for all who love the feel of being behind the wheel."
The coin is shaped like a classic car. Like all other gold half grams in the special shapes series, the date of issue is not written on the coin. | 
Search for Palau: Gold Half Gram (2021) Classic Car on eBay 