Nigel Mansell is hoping Ferrari can give for Sebastian Vettel a title-challenging car next season as he wants "more competition" in Formula 1.
Lewis Hamilton is just nine points away from securing a third Drivers' Championship. Should he win Sunday's United States GP and Vettel finish third or lower, the title will go to the Brit with three races to spare.
It has been a dominant season for Hamilton, who to date has won nine races, been on the podium on 13 of 15 Sundays, and has 11 pole positions.
"He has a great team, wins with little trouble and that is why everything is easy for him," Mansell told La Gazzetta dello Sport. "He is enjoying himself and is relaxed. Like Sir Jackie Stewart said, he is racing on a red carpet.
"[Nico] Rosberg has been hurt by reliability issues, but he wasted too much time defending results.
"More competition, and a Ferrari that is closer in performance to Mercedes, is needed, so that things would be like my era when [Ayrton] Senna, [Alain] Prost, [Nelson] Piquet and I were always fighting."
This year, though, has at least seen the return of Ferrari.
The Scuderia's Vettel is the only driver aside from Hamilton and Rosberg to have won a race and is second in the Championship heading to Austin.
"No, I expected it," Mansell said when asked if he was 'surprised' by Ferrari's fight-back. "Ferrari are one of the few teams that can always surprise.
"Three victories and several podium finishes are a good result, but they can do better next season. I hope they give [Sebastian] Vettel a car that can win the title."
As for whom is the best of Hamilton, Vettel and McLaren's Fernando Alonso, the 1992 World Champion said: "They are three great drivers. I would like to see them in the same car to find that out."