Hello, I still have my original UK boxed copy of Carmageddon OG. I'm looking at other copies on ebay and they do not come with a manual addendum. Mine has an extra page detailing the zombies added to the game. I'm wondering which is the rarer edition?

https://www.ebay.co.uk/itm/146409955783 for example does not appear to have the manual addendum page.

Don't know about rarity but the Splat Pack version seem to be worth the most according to Pricecharting.

https://www.pricecharting.com/search-products?type=prices&q=carmageddon&sort=popularity&broad-category=all&console-uid=G145&exclude-variants=false&region-name=all&show-images=true