In indycar and Nascar which used fixed cars (all the same) are weight advantages?

Question

a driver has negated by adding additional weights ? Say an indycar racer weighs only 100lbs, are weights added to his car so he doesnt have an edge over an 150 lbs driver ?

Answer 1

all racing has a minimum weight that the vehicles have to weigh at the beginning of the race,however a driver that weighs 150 pounds has more of an advantage than one who weighs 200 pounds because the crew can place the extra 50 pounds on the chassis so it can transfer the weight better.why do you think you dont see many 200 pound drivers in formula one or indy car.