Auto loan rates are still high. Gas just crossed $4 a gallon. And Mercedes-Benz picked this moment to announce one of its biggest U.S. factory commitments in years.

The German luxury brand said Tuesday it will spend $4 billion upgrading its Tuscaloosa County, Alabama manufacturing hub between now and 2030. The goal - sell nearly 400,000 cars a year in the U.S. by the end of the decade, up from roughly 303,000 last year. That's about a 28% jump.

The Market Isn't Cooperating

Mercedes USA CEO Adam Chamberlain didn't sugarcoat things. He told CNBC the first few months of 2026 have been rougher than the company planned for.

Borrowing costs for car buyers remain steep. Fuel prices are climbing.

Broader worries about the economy and global politics are making some shoppers hesitate.

Chamberlain said higher pump prices haven't spooked Mercedes shoppers so far. But he flagged a breaking point - if fuel stays near $5 a gallon for three or four months, that starts to change the math for buyers.

Why Bet Big Now?

Most of what Mercedes sells in America still comes from factories outside the country. That leaves the company exposed to the import duties President Trump placed on foreign-built cars.

Building more cars in the U.S. is one way around that problem. Mercedes said it will start producing its popular GLC SUV at the Vance plant in the coming years, adding to the GLE, GLS, and several electric models already made there.

The company says it has kept price hikes to just 1.3% since tariffs kicked in - a fraction of the overall inflation rate over that stretch. That's a tight margin play, and local production helps protect it.

The Vance facility employs around 5,800 workers and sends about 60% of its production to international markets.

What Rolled Out Tuesday

The centerpiece of the event was a first look at redesigned GLE and GLS SUVs. Mercedes also showed off a new GLE 53 Hybrid that will be built in Alabama.

Ola Källenius, who chairs the Mercedes-Benz Group board, called his time leading the Tuscaloosa factory a defining stretch of his career. Former Alabama football coach Nick Saban added some star power, stepping out of one of the new models to cheers from the crowd.

Worth Noting

Mercedes is racing to shift more production stateside before tariff costs eat further into its margins. If the company hits its 400,000-car target, it will have grown U.S. sales by nearly a third in five years - during one of the trickiest stretches for car buyers in recent memory.

That's a bet on the brand, not the economy.