According to Tesla's US website, Tesla is offering discounts of more than $1,300 on some Model 3 models in stock in the US. The cheapest Model 3 is now less than $40,000.

You might think a discount of more than $1,300 is a lot, but in fact the discounts in Europe have been even deeper.

According to Tesla's website, Model 3 and Model X inventories are at their highest levels in a year. Tesla, which has slashed prices in several regions this year, is taking the strategy of traditional automakers by offering incentives to clear inventory as it faces economic headwinds and increased competition, industry analysts said.

Tesla CEO Elon Musk said Tuesday that the company will try advertising its cars for the first time, a move analysts see as an attempt to stimulate demand. Musk also warned that Tesla is not immune to the global economic downturn, predicting a difficult 12 months ahead.

"Tesla is starting to rely on incentives just like traditional automakers do when dealers have too much inventory," said Ivan Drury, director of Insight at Edmunds.com, adding that the incentives "suggest that Tesla has started to oversupply the market a little bit."

According to Tesla Info's global inventory list, Tesla's China-made Model 3 currently has a discount of 3,490 euros (about 26,454 yuan), while the Berlin-made Model Y has a discount of 3,660 euros (27,743 yuan), Similar discounts are offered in other markets such as France, Germany, the UK and Italy.

Tesla solved its inventory problem in China by exporting from the market, Tesla researcher Troy Teslike said. "The problem is that cars being exported end up in Europe with near-record inventories. Now Europe has an inventory problem, but China does not.