Sebastian Vettel will only be an undisputed F1 "legend" if he wins at the wheel of a less competitive car.
"I think when Vettel has a car like the rest in the field, if he wins, he will be greatly acknowledged and be one of the legends of formula one," Ferrari's Alonso is quoted as saying in Spanish-language media reports.
"But if someday he has a car like that of the other drivers and is fourth, fifth or seventh, then his four titles will be bad news for him because people will view these last four years in an even worse way," he added.
"I think there are some interesting years ahead for Sebastian," Alonso is quoted as saying.
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