Red Bull chief designer Adrian Newey has admitted the 2014 RB10 is "ugly".
Next year a new raft of aerodynamic and technological changes are coming to F1 with the aim being to reduce the level of downforce the cars produce.
"The new Red Bull is ugly. Unfortunately," he is quoted by the German news agency SID.
Regarded as the best designer in F1 many will be looking to Newey to find all the loopholes and invent new ideas within the new regulations.
Indeed the Briton has skipped the trip to Japan this weekend, where his RB9 could take Sebastian Vettel to a fourth world title, and is instead back in Milton Keynes working on the RB10.
Newey claims he is working "four days out of five" on the 2014 car and claims the reason for the ugliness of the RB10 is because of a new "hook" style front nose.
The bigger concern for all designers however is the new power train with the V6 turbo along with the much bigger Energy Recovery System (ERS), Newey described the new units as "more complex than ever before".
One man who raced in F1's last turbo era was Alain Prost, now an ambassador for engine supplier Renault, he agreed with Newey's assessment of the new engines.
"We have three engine manufacturers, and none of them are particularly optimistic," he said.
"Reliability is the biggest challenge at the moment, to be honest," he added.
However Mercedes director Toto Wolff has expressed his excitement about the new rules.
"A month ago I was in Maranello and saw their engine factory and thought: 'German engineering ingenuity against Italian improvisation and French laissez-faire'."
While the engineers are enjoying the challenge of the new rules, Felipe Massa in concerned they could spoil the F1 show.
"Yes, it could be very frustrating to have to save fuel," said the Brazilian at Suzuka.
"I just hope it can be interesting to watch for the spectators and viewers and that it can also be interesting for the drivers," he added.
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