Porsche remains hopeful after Vettel's Le Mans debut postponed
![Porsche remains hopeful after Vettel's Le Mans debut postponed](https://sm.imgix.net/23/38/sebastian-vettel.jpeg)
"More time" is required before Sebastian Vettel can be ready to compete at Le Mans with a car that has the potential to win the prestigious 24-hour endurance race, according to a Porsche boss.