Stewart-Haas Racing driver Kevin Harvick will be back in black with the No. 4 Mobil 1 Ford Mustang during the 2021 NASCAR Cup Series season. In select races, the eye-catching look will sure to be at the front of the field as Harvick chases the 2021 championship. Mobil 1, the world’s leading synthetic motor oil brand, is a longstanding partner of the Stewart-Haas Racing team and will once again support Harvick in the new season. Now the official die-cast of Harvick’s 2021 No. 4 Mobil 1 Ford Mustang is available to order from Lionel Racing.