Fernando Alonso was the only one not amused when Sebastian Vettel cracked a joke during Saturday night's post-qualifying press conference.

Vettel qualified behind Ferrari's pole sitting Alonso on the Singapore street circuit, but said he still rated his chances of driving his Red Bull to the top of the podium.

"The further up you are the more it helps but obviously the race can still change a couple of things.

He smiled as he paused; the reporters laughing as they realised Vettel was referring to the famous 2008 race, when then-Renault teammate Nelson Piquet Jr. crashed deliberately to trigger an opportune safety car period for Alonso.