Investors knew 2025 could be a slow year for Rivian Automotive (RIVN 0.51%). The company's next vehicle launch, the highly anticipated R2, won't hit roads until 2026, and the company lacks any real visible catalysts. The good news for investors is that the automaker is finally gearing up to do a big marketing push, and it should provide a boost to stagnating sales.What's going on?Rivian's customers are passionate and invested in the brand, even though it's a relatively small player in the electric vehicle ( ...