Guy buys car from local Hyundai dealer and gets into an accident with another vehicle soon after leaving the dealership, killing a female passenger and injuring himself and another passenger. Due to a paperwork snafu, the paperwork was not yet done and the car was still registered to the Hyundai dealer.

The family of the dead woman sues this guy, the driver of the vehicle he hit (the man pictured below was found to be at fault) the owner of the vehicle he hit (work vehicle) and the Hyundai dealer. What liability does each party have?