Xray XB4 Release Date By Matt On November 27, 2012 · Add Comment Just ahead of the IFMAR 1:8 Off-Road World Championships in Argentina, Xray will release the full details of their first 1:10 off-road buggy, the XB4. Look out for the news on this site over the weekend. Source: Xray Tagged with → IFMAR • XB4 • Xray