Choro-Q Wonderful! is a Playstation 1 game developed by E-game inc, published by Takara.

You're a Choro-Q that won in the recent World Grand Prix. But one day, you went around the city and you backed up into your garage. Because you didn't know the World Grand Prix Cup was behind you, you broke it carelessly. Soon, your best friend, Rival came in there, he said: "Hey! What's up? Oh, you don't look ok. The World Grand Prix will be held soon. But, I won't letcha win this year. Your vaunted Cup will be mine... Oh? Where's your vaunted Cup? But it's OK. You can't be lookin' your Cup so long. By the way, you're installin' weak parts. If you entry a race with 'em, you'll fail at the heats around cities. Oops, your petrol tank's just empty. You'd better go to the Q's Factory to be filled up. Later!"
He goes back, and you must come up with some good ideas to gain the Winning Cup again...