Haha. Well, if you watched the last 10 seasons, it's simple. Jimmie drives the cars differently than other cup drivers, and the 48 is always setup differently. Very lose.
Jimmie drives heavy on the gas, and drives the rear of the car, the left rear side of the car. Watch a race, attend a race. You will see the 48 sideways atleast 50+ times. But the point here, is there is a small threshold for setting the car up for Jimmie. It makes his cars VERY sensitive to adjustments.
Example, 2013 at Dover. 48 struggled the first run, your boy in the 18 was dominant to start race, put the 48 about a lap down. Made ONE adjustment, and was the fastest car, and took the lead from Kyle 100 laps later, won the race on 2 tires, pulling away from the 88 with 4.They are agressive with loose setups. When they are being that aggressive, it's either fast, or messy.
So, with the Chevys, and 48 specifically lacking speed, they probably were really aggressive with loose handling setups to compensate for power, and probably tried to make it up with corner speed..given the speed discrepency, agressive setups were probably used and they never could find the right balance, thus giving him overly looserace cars, I would think.
His dominance was because when the car was that RIGHT looseness, he was just always faster and better, it didn't matter what anyone else had. Most people couldnt drive the rear of the car as effeciently and thus the cars weren't setup to carry to corner speed his did. Having elite horsepower on top of that made him unbeatable. But that looseness was always a very fine line.
That answer the question for ya