Tesla Inc is offering $7,500 discounts on Model 3 and Model Y electric vehicles (EV) delivered in the United States this month, its website showed on Wednesday, amid concerns the automaker is facing softening demand as economies slow and EV tax incentives loom. The latest discount came just days after the U.S. Treasury Department delayed restrictions on EV incentives until March, meaning Teslas and other U.S-made electric vehicles are likely to qualify for the full $7,500 credits temporarily. Analysts also worry that rising interest rates and CEO Elon Musk's controversial Twitter management could hurt the Tesla brand and sales.