These two cars were not made just for a "video game". These are real concept cars that are part of a GM design exercise which involved multiple GM studios globally. That is why your neighbor knows about them. They are going to be in GT7 because of a collaboration between GM and PD.You know this car is a big deal when your next door neighbour, who used to be the President of the Victorian Corvettoe Club, knows about it. Probably shouldn't be surprised but it just goes to show how concepts made for a video game can make a mark on car culture as a whole. To say that GT isn't a part of modern automotive culture is a flat out lie.