The MkIV J-20 is seeing some track time today with Jarett Andretti during the shake down at Carolina Motorsports Park. Jarett’s great uncle Mario Andretti raced and won the Twelve Hours of Sebring in the original MkIV back in 1967. Learn more at karkraftmkiv.com. #RileyTech #KarKraft #Continuation #Classic #Sebring12