I haven't had any luck so far. It is hard to find it in the same color.
There is one on ebuy for $280.
There are also others that fit but the color is not the same, and they can be found for the price from $99-$150 in very good condition.
I'm not sure if covers from other models fit but I'm sure that it is 16" that I'm looking for.
Ok Just saw the thread was posted a long time back. But this might be useful to someone else.
Here is how i got one a new one for 50 pounds (around 66 USD).
Keep in mind, i do not live in Europe nor US. I live in a far off island lost in the middle of the indian ocean where everything cost a premium. So, if you are in the US or Europe it should be really easy.
Here is what i did:
look for "rav 4 spare wheel cover" on ebay.co.uk. Occasionally you might get a good deal, i once saw a spare wheel cover going for 15 pounds. You will see a lot of used ones and if you are lucky like me, you could even score a new one.
Using a company named aramex, i got a local UK address, where i can have my parcels sent and these are automatically forwarded to my real address. If you are in the US, i guess Aramex would not work for you. But most probably you will have a lot of companies doing the forwarding stuffs at a competitive price.
Overall i paid around 60-65 USD for the forwarding to my address.
Total cost : around 130 USD which was much better than was quoted to me by the sole dealer on the island (around 700 USD and as they do not stock it - it would take another 2-3 weeks).