(Image credit: Xbox) Everyone's favourite tradition continues yet again in Forza Horizon 6 with Barn Finds , iconic cars you'll have to track down before you can add them to your garage. Like previous games in the series, you'll need to search a designated area for the barn—only this time around, you unlock new finds by increasing your Discover Japan stamp level. Played by Finding all the Barn Finds is always my favourite thing to do in each new Forza Horizon game, and that's not changed. In fact, there are more cars to hunt down this time around, thanks to the new Treasure Cars—similar to Barn Finds, but different enough. I've spent 20 hours driving around Japan to collect all the Barn Finds and Treasure Cars in Forza Horizon 6, so that you can focus on the racing instead of driving at 5 MPH following breadcrumbs.…