IT WAS too hot an entrepreneurial idea to pass up.

Singapore Management University students Eugene Yeo, 25, and Mr Dararith Saing, 22, were in Cambodia doing community work when they spotted a business opportunity.

'In Cambodia, cars heat up after just 15 minutes in the sun because the windows don't have solar-control film to block out the heat,' said Mr Yeo.

Read Cassandra Chew's full story in tomorrow's edition of The Sunday Times.