Grand Champion’s Rally is a cancelled racing game that was in development by Aques. In mid nineties Squaresoft, known for its mastodontic RPGs, created Aques (Advanced QUality of Entertainment and Sports ), a label under which release game based on thoughts and sports. At the japanese PS Expo in late 1996 they announced the first three titles for the Aques brand: a baseball game named Super Live Stadium, a mahjong simulation and a racing game known as Grand Champions Rally, the latter of which would never been released for unknown reasons.
At the time a single screenshot (below) of the rally game was shown in various western magazines like for example Edge 40 and Player One 70. Article about Aques from EGM issue 90.
Thanks to Celine for the contribution!