The Korea race organisers have made changes to the problematic pit lane exit on the circuit.
Formula One has struggled to gain a foothold in South Korea at a bland venue in a remote location.
The new Indianapolis Motor Speedway road course which IndyCar will race on next year is expected to be an improvement over the layout F1 used.
Sebastian Vettel won the Driver of the Weekend poll for the fourth time this year following his domination of the Singapore Grand Prix.
The Korea International Circuit will have a second DRS zone this year on the pit straight, and the configuration of the original DRS zone has been changed.
In the round-up: Marussia post loss in 2012 ?σΤιΌ?σ Lotus want Grosjean to raise game ?σΤιΌ?σ Maldonado: 2012 win boosted F1 popularity