Motorists can race through the Kallang-Paya Lebar Expressway (KPE) tunnel- South-east Asia's longest underground road tunnel - before it fully opens on 20 September.

The Land Transport Authority (LTA) is giving 400 people, or 100 cars, a chance to tackle challenges along the unopened 9km span north of Sims Avenue in a car rally to be held on 6 September.

This is to get motorists familiar with the KPE and the roads in its vicinity.

On 14 September, there will also be a 10km run and a 5km walk-and-run.

The LTA aims to break the Guinness World Records by creating the largest lantern parade in the tunnel that day.

This article was first published in the Straits Times on August 8th 2008.