Former driver Hans-Joachim Stuck wrote in his German column for Eurosport that he dislikes the look of this year's formula one cars.
"The tyres are too narrow, the rear wing too small and the front wing too big, and the nose is a complete failure," he said.
"It's like imagining Heidi Klum without her nice behind and bosom, and that's unfortunately what they've done with the new cars.
"Let's hope that they're fast, at least."
Tyre supplier Pirelli's motor sport director Paul Hembery recently slammed the new cars for being "pig ugly".
He told The Sun it could be a turn-off for potential new fans and sponsors.
"It is what a lot of people will say who are maybe not as intimately involved as we are," said Hembery.
