Let me tell you something. Your dad obviously has the right idea, being a car nut. To me, that's the first step to appreciating GT4. The next few steps is getting out there and PLAYING GT4. Have him learn the ways from going from newbie to champion. Have him practice his moves and learn proper racing techniques. When he's done with the asphalt, you know how the saying goes. "Dirt is for racing, asphalt is for getting there." So once you're done with asphalt, hit the REAL dirt tracks = RALLY RACING!!! Let him learn how to slide around and look cool doing it. Afterwards, win races and cars and money. And when he's ready for a bigger challenge, let him have endurance racing. Then keep on going until perfection has been reached.
Yeah, it's a lot of work, but if you want to be the best at GT, do like us veterans of the series have done. With work, he'll PWN any jive turkey who think he/she can hang with pops. Dig?