The title rivals Vettel and Hamilton collided on the opening lap, with both sent to the rear of the field after pitstops to repair the damage.
Vettel’s failure to finish in the top two at Mexico – Autodromo Hermanos Rodriguez meant Mercedes ace Hamilton went level with him on four Formula 1 titles.
When the source asked about Hamilton equaling things up, Vettel didn’t sound too impressed.
Speaking on Sky Sports, Vettel said: “He’s on a par [with me], if you can count.
“I don’t fear him, I like racing with him but I would have liked a little bit more of that this year. Overall they were just the better bunch.”
The German was pleased to praise Hamilton, who’s become the first British driver to win the F1 title three times, though.
Vettel said: “It’s disappointing [finishing fourth]. It’s not that important what we have done today, it’s more important what Lewis has done and he’s done a superb job all year round and deserves to win the title.
“Congratulations to him. It’s not about anybody else today. It’s about him. It’s his day.”