We need to produce JSON with fields: seo_title, summary, key_entities (companies, people, locations), expert_faq (question, answer), internal_link_anchor, primary_keyword, secondary_keywords, content_type.

Constraints: summary must be 180-250 words, split into exactly 3-4 paragraphs separated by \n\n. Each paragraph 45-65 words. Must bold select terms using **.

We need to extract info from source. Let's parse.

Source: Mercedes dominated 2026 F1 campaign, but Lando Norris reckons Ferrari would “embarrass” competition if it had stronger engine. Mercedes won opening six grands prix via George Russell and Kimi Antonelli, but Barcelona saw Lewis Hamilton end that streak by winning for Ferrari. Hamilton had been close with consecutive runner-up finishes until Scuderia brought heavily-upgraded package to last weekend that impressed rivals. Many now believe Ferrari boasts strongest chassis but according to recent ADUO results, lacking engine performance - key aspect of 2026 regs. Findings: Red Bull is surprise benchmark with Mercedes 2-4% behind, while Ferrari is over 4% off meaning it receives two upgrade tokens which could be a gamechanger. Norris quoted: "We're lucky that Ferrari don't have a better engine at the minute,” McLaren’s Norris told Sky Sports. “If they had a better engine, they're dominating. Charles Leclerc, Ferrari, Lando Norris, McLaren Photo by: Sam Bagnall / Sutton Images via Getty Images“They're the class of the field in terms of cornering performance at the minute and we're not even close to them. It's the realistic point of it, we're a long, long way from where we need to be.“If they make improvements on the engine side, then they'll embarrass everyone. We need to really get our heads down and see what improvements we can do. But the team are working hard. It's not that we're not doing that, we're working very hard.“Everyone back in the factory is doing the best they can. Some things take time, but we need to really accelerate the progress at the m