The commercial-rated pilot began his takeoff roll using normal takeoff power and configuration. As the pilot began back pressure on the yoke to start rotation, the airplane began to drift left of the runway centerline. He then applied right rudder and the airplane drift slowed but the control correction was not sufficient and the airplane departed the runway. The pilot still had full power applied and added full right rudder and aileron to avoid several parked aircraft on the apron. The airplane clipped a barbed wire fence as it departed the runway, coming to rest upright in a pasture perpendicular to the runway. The left main landing and nose gear collapsed, and the left engine, propeller, and both wings were substantially damaged. The pilot and his passenger were uninjured and egressed normally.