Can I get a car loan or auto financing as a newcomer with no U.S. credit history?

Often yes, though at higher rates. Some lenders, captive finance arms of automakers, and credit unions run newcomer or 'no U.S. credit' programs that underwrite off your visa, income, and sometimes an international credit profile, often asking for a larger down payment and proof of stable employment. Expect a higher APR until you've built domestic history. A credit union you bank with may be more flexible than a dealer. If you can wait a few months and build a secured-card or credit-builder-loan record first, you'll qualify for better terms. Get preapproved before shopping so you know your rate. The CFPB has auto-loan shopping guidance for consumers at consumerfinance.gov.