'It is the only Web site of its kind in Hong Kong that has a club for members. Members can save bonus points to get a second-hand car.'

Apart from the trading of second-hand cars, people could also get other useful information such as local traffic conditions, car park space and maintenance services through the Web site.

'We believe that there is a great potential for online second-hand car sales in Hong Kong,' said Chiu-wong.

'Actually, before we decided to choose this as our main theme of the proposal, we distributed a lot of questionnaires to collect opinions. And most of the respondents showed an interest in online second-hand cars.'

The winning team said they had learned a lot from the competition. 'We learned theories from [business studies] lessons,' said teammate Roe Siu Yau-hin, 18.

'The proposal gave us a chance to get practical experience.

'We had not thought about winning. We just tried to do our best. Winning is, of course, wonderful, but the most important thing is that we gained a lot from the process.'

Chiu-wong added: 'It is really a precious experience. We have learned how to share ideas and work with others. The first prize has also enhanced our self-confidence.'

The team thanked their business studies teacher Pansy Wong Kim-bing for helping them. They said she gave them a lot of useful advice and even stayed overnight with them while working on the project.

'I was so glad to see them work so hard,' said Ms Wong. 'The proposal has raised their interest in business studies and spurred them to study harder during lessons.'

Lilian is a summer intern from the Chinese University of Hong Kong