Which one piece character are you?
Mr. Whoopee is another rare vehicle to find, or hear; you will know it is around if you hear its melody playing. It has average handling and speed. It is extremely hard to find, but if you drive around long enough (more prevalent in Shoreside Vale) you should find it.
A fast car with smooth, precise steering, the Borgnine Taxi is one of the best cars on the streets of Liberty City. It is available only after 100 taxi missions have been completed and is parked at "Borgnine Taxi's." To get there, start at your Portland hideout and go right. Then, hang a left at the stop light. It will be waiting for you on your right.