Loony Tune

Loony Tune is a bronze-level PSN Trophy appearing in Gran Turismo 5. It is acquired upon spending a lot of Credits for tuning a single car.

Earning this trophy is simple enough, you need to buy all upgrades of various levels ranging from sports to racing.

Trivia

 * The name of this trophy is curiously taken from the Looney Tunes series of cartoons by the Warner Bros. directed by Friz Freleng and produced by Chuck Jones.