BMW X6 Offroad 4x4 Rally for GTA 5. The BMW X6 Offroad 4x4 Rally is a powerful SUV that can overcome any obstacles in its path. It has a stable and aggressive appearance that makes it an outstanding representative of its class. The BMW X6 Offroad 4x4 Rally has large wheels with wide tread, allowing it to easily overcome difficult road conditions. Its increased ground clearance and durable suspension provide excellent maneuverability even on the most uneven terrain.