I agree that wider tires can exacerbate the problem, but the offset [ backspace ] is really important. I can give you a real world example. My daily driver is a '01 Mustang. stock wheels are 17x8 with nearly 6 in. backspace. I replaced them for an autocross once with the same size wheel and tires [ 245x45 ] from my 'Cuda which has tires with more grip. The backspace on the 'Cuda is 5 in. This gave me a wider track on the 'stang which can help cornering along with the better tires. In a straight line the car wanted to follow rain grooves in the pavement and was noticeably darty. It dosen't do that with the stock Mustang wheels.