The YJ YuSu R 4×4 is the updated version of the YJ YuSu 4×4, which seeks to improve upon the performance of the YJ YuSu and YJ GuanSu 4×4 by combining the best aspects of the 2 predecessors. It is also available in Transparent Stickerless, which was previously not available on the YuSu or GuanSu.
The YJ YuSu R 4×4 will replace the YJ YuSu 4×4.