Although some upmarket brands like Ferrari and Mercedes have raised sales forecasts due to continued high demand for top end models, the outlook for the bulk of the industry is bleaker.
Waiting times on new orders are becoming shorter as order books thin out. That's even with production slower than usual and deliveries well below last year, executives said.
"New incoming orders are falling," BMW chief executive Oliver Zipse said in an earnings call on Wednesday, pointing in particular to Europe.
Carmakers have until now protected margins by bumping up prices, but the steep rise in inflation in North America and Europe could make it more difficult to pass on rising costs.
"Demand is coming down," Volkswagen's chief financial officer Arno Antlitz said last week, though he said order books were still full for the coming months. "The warning signs are for Europe and North America, less for the Chinese region."
Inflation in Europe and the United States has soared in recent months with central banks warning a peak could be months away, sending consumer and business sentiment plummeting.
Data from online car dealerships and auction platforms showed a slowdown in demand since March this year, Philip Nothard, insights director for Europe at Cox Automotive, said.
"Consumers are currently very cautious," he said.
A survey by the Munich-based Ifo institute released on Wednesday showed German carmakers' order backlogs shrinking and price expectations on a downward spiral due to concerns about a gas shortage and continued weakness in the Chinese economy.
"The weight of buying a car on the household budget is something we will come up against," Stellantis chief executive Carlos Tavares said last month.
For now, the carmaker intended to carry on passing its own rising costs to consumers, but this could not last forever.
"There is a limit to price hikes," Tavares said.
In the United States, Ford was considering bringing back discounts and incentives which were scrapped last year amid supply chain concerns, Chief Financial Officer John Lawler said.
"That's a relief valve going forward," he said.
(Reporting by Victoria Waldersee, Gilles Gillaume, Giulio Piovaccari, Joe White; additional reporting by Maria Sheahan; Editing by Matt Scuffham and Elaine Hardcastle)
By Victoria Waldersee