Jefferies earns full season in FIA World Endurance Championship
Jefferies joins haupt racing for GT endurance cup
Jefferies is also part of the Konrad Motorsport family in the NLS Series and Nurburgring 24 Hour this year and Haupt Racing is the fourth team he will be joining this year.
Jefferies joins haupt racing for GT endurance cup
Jefferies is also part of the Konrad Motorsport family in the NLS Series and Nurburgring 24 Hour this year and Haupt Racing is the fourth team he will be joining this year.