AFX 1971 Chevelle 454 Yellow Mega G+ HO Slot CarDetails: This new Mega G+ chassis doesn't just go faster or handle better than the competition. And it doesn't just have the ultra low, narrow dimensions of the original Mega G to continue the reign of the most realistic HO cars on earth. It's smoother, more consistent, and more intuitive than any car we've ever built. We wanted wheel to wheel racing, lap after lap, the feel of driving a real car. But we couldn't do it by just changing the chassis.