MIAMI :Reduced profit expectations and a potential $5 billion hit from automotive tariffs will not affect Cadillac's Formula One debut next season, General Motors President Mark Reuss said on Saturday. Cadillac's parent company GM cut its 2025 profit forecast this week in the wake of uncertainty over the wide-reaching tariffs introduced by President Donald Trump. The Detroit carmaker plans to compete with its own power units from 2029 after using Ferrari engines initially. Reuss told selected