I 100% agree with that. I bought both, and in both their physics are the same understeer-only handling of 8-bit racers, but far less forgiving. Controls aren't rewarding at all. IIRC, the second one has a battery save, which would be a welcome feature on some other games though.
So far, the Domark F1 game has my vote for best open-wheeled racer. I'm still waiting for 'andretti-something-or-other' to come in the mail, and then I hope to do a youtube shootout between all six genesis open-wheelers that I have. I've said before that I don't do well at F1 video games, and that's still true, but I can probably put together a fair comparison.
Power Drive came a couple days ago, but I've been too busy to try it out. Looks awesome though, and it's nice to have that series on a system that I have plugged in more frequently than the jag.
I would like a really fun overhead racer on the Gen/Megadrive, I have power drive for the Jag. It's good