topgear once did a thing on GT4 and track racing, taking a car from GT4 and driving it around Laguna Seca...
if i remembe right, he came to the conclusion that it helps remembering corners, which helps the initial real life first laps... but also said it's to optimistic (Jezza coudn't get near his GT4 time in real life, was cooking the brakes of his NSX) and not seat of the pants realistic enough to think one will be able to compete with those who actually did hundreds of laps on a track,
found the video