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Part 34 of The mysterious Mrs Piastri
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Published:
2025-06-01
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Formidable

Summary:

Andrea Stella figures out that Felicity Piastri is more than “just” Oscar’s wife. 

Work Text:

It started the way most breakthroughs did—not with a groundbreaking discovery, but with a tired engineer holding a half-wrinkled printout and a hopeful expression.

“Boss,” James said, hovering just inside the doorway of Andrea’s office. “I think you should read this.”

Andrea looked up from his laptop. “If it’s another CFD model from that Reddit forum, I swear—”

“It’s not. It’s from a paper. Academic. Legit. Published in Race Systems & Applied Motion last month.”

Andrea raised an eyebrow. “Obscure.”

“Very. It has like 20 readers,” the engineer agreed. “But I think it’s real. It’s clean. It’s sharp. It’s…” He hesitated. “We might want to test it.”

That got Andrea’s attention.

He took the paper and began to skim.

Title: Redefining Compliance: Adaptive Suspension Geometry Under Load-Sensitive Parameters for Mid-Field Chassis Configurations.

Andrea kept reading. It was dense—academic, yes—but it was also practical. It spoke the language of someone who knew exactly what they were doing. There were no ego traps. No unnecessary complexity. Just hard math and hard-earned insight.

Andrea flipped the page. Then another. His eyes caught a note referencing flex dynamics in chassis response curves and passive recovery lag.

It was correct. More than correct. It was insightful.

The author wasn’t spitballing ideas from afar—this was the work of someone who had lived in the theory and understood the application. Who referenced real-world tolerances. Racing examples. The math was sound. The diagrams were better than half the ones their CFD team managed.

Andrea flipped back to the byline.

Dr. F. Piastri.

Piastri

James grinned. “Fun coincidence in the name, right? He’s smart.”

Andrea didn’t correct him.

Because yes— coincidence . Probably . But something about it stuck in his brain, like a whisper he couldn’t quite place.

He read the essay in full that night—twice. It was elegant, sharp, and frustratingly precise in the way only truly experienced voices ever were. The type of clarity that came from years of not just understanding a concept, but translating it into reality.

The next morning, Andrea sent out an internal email.

Subject: Additional Works by Dr. F. Piastri
If anyone has access to prior publications by this author, please forward them to me.

By the end of the week, his inbox was full.

One essay became three. Three became eleven. Eleven became twenty. 

Each one published under the name F.Piastri , buried in obscure journals and small-circulation engineering reviews that didn’t get traffic unless someone was either deeply curious or incredibly desperate. 

Andrea was both.

Each article was smarter than the last—strange, elegant engineering thought-pieces published across the most obscure academic mechanical journals Andrea had ever encountered. Niche ones. The kind that only the most obsessive minds contributed to, with names like Thermoelasticity in Microstructured Materials and Lateral Load Adaptation Quarterly.

F.Piastri had written:

  • An article about Load-dependent understeer in transitional corners (with math that Andrea double-checked twice because it was too clean).
  • A 2019 think-piece on long-run stability under thermal degradation.
  • An essay about Aerodynamic oscillation buffering for short-track endurance vehicles.
  • An article about the economic viability of 3D printed carbon struts under rotational shear (he actually flagged that one for McLaren Applied).
  •  A thesis that corrected a widely accepted torque model—buried in a conference archive.
  • A published rebuttal in Journal of Vehicle Design so politely worded it read like a love letter—until you realized she’d rewritten the reviewer’s assumptions line by line.
  • There was even one article on fluid dynamics that had been cited in a grad-level textbook from ETH Zurich. 

Andrea devoured them all.

He—She?—wrote like someone who saw the car before it was built. Who understood not just how suspension worked, but how it felt. How energy passed through a chassis not as force but as intent.

The writing style was sharp. Practical. Absolutely ruthless in its logic. There was clarity there—an elegance—that reminded him of only a few people he’d ever worked with.

It was revolutionary. It was poetic.

By the time he tracked down the doctoral thesis from Oxford, Andrea wasn’t breathing properly.

Reinforcement Through Flexibility: Dynamic Adaptation in Composite- Structured Performance Environments.

By: F. Piastri.

 Submitted: December 2022

Andrea stared at the name.

  1. Piastri.

He stared for so long his tea went cold beside him.

His hands were shaking—not because of nerves, but because he already knew.

He opened the PDF.
Skimmed past the table of contents.
Scrolled through diagrams that made his heart stutter.

There was no photo. No biographical section. Just a clean Oxford University seal, 284 pages of dense, brilliant theory, and then—

A dedication.

To Oscar:
For believing in a future that didn’t exist yet, and building it with me anyway. Every lap, every choice, every time—you’ve been my constant.

And to Bee:
For reminding me that softness and strength aren’t opposites. You are the best thing I’ve ever helped create.

Andrea sat back in his chair like he’d been physically shoved.

Bee.

Oscar. 

  1. Piastri. 

Felicity Piastri. 

Felicity.

Oscar’s wife.

Dr. F. Piastri wasn’t some reclusive academic or distant uncle with a gift for simulation modeling.

She lived in Oscar’s house.

 She packed his lunchbox.

 She raised their daughter.

 And she had published papers on suspension theory that half of F1 would kill to understand. Quietly. Efficiently. Correctly.

Andrea leaned back in his chair, stared at the ceiling for a long moment, and whispered:

“…Of course it’s his wife.”

Of course the quiet, composed driver who rarely raised his voice and always had one hand on the bigger picture had married someone brilliant. Of course she wasn’t just talented—she was a published expert with a doctorate from Oxford.

Not a coincidence. 

Not a mystery engineer.

Not some guy .

But Oscar’s wife.

Oscar Piastri—quiet, methodical Oscar—had married a genius.

A doctor of mechanical engineering from Oxford who wrote better technical documentation in a margin note than most engineers did in a year. Who published under initials. Who could probably solve half their handling inconsistencies while holding a toddler on her hip.

Andrea sat in silence for a full minute.

Then he exhaled. “...of course he did.”

He opened a new tab.

Email draft: 

To: Technical Team 

Subject: URGENT – Reference Reading Required

Attached: Every single thing Dr. F. Piastri had ever published.

***

The meeting was meant to be quick.

Just a routine Monday touchpoint—debrief, run through media notes with Sophie, talk sponsor appearances, maybe discuss Oscar’s upcoming comms obligations.

Zak had rolled in with a protein shake.

Lando was lounging sideways in a chair like he’d melted into it.

Oscar had a protein bar and an expression of polite mildness, as usual.

Andrea, meanwhile, had not slept.

 Not because of the race.

 Because he’d spent the entire weekend reading Dr. Felicity Piastri’s entire body of work. Every published paper. Every obscenely niche journal article.

And her doctoral thesis.

He hadn’t meant to do it all in one sitting. He just couldn’t stop .

By 2 a.m. he was muttering things like “Of course she used Euler-Bernoulli assumptions, she’s too smart for non-parametric bullshit.”

 By 4 a.m., he’d highlighted her proposed solution to dampen micro-vibration load in corner exits.

 By 6 a.m., he had a headache, an existential crisis, and a desperate need to know: Why had Oscar Piastri never mentioned this?!

So at the end of the meeting—just as Sophie was wrapping up and Lando was aimlessly spinning a pen like a propeller—Andrea set down a file on the table.

Calmly. Casually. Like he hadn’t just had his entire mechanical worldview rattled by a woman who wasn’t even on the payroll.

“Oscar,” Andrea said, voice deceptively neutral. “Why didn’t you ever mention that your wife holds a doctorate in mechanical engineering?”

Oscar, halfway through eating his protein bar, blinked. “What?”

Andrea gestured vaguely, as if the thesis were still radiating brilliance from his desk. “Felicity. Doctorate. Thesis. Dozens of published papers. Half of them useful to our current car design issues. Why didn’t you say anything?”

Oscar blinked once. “Oh. Yeah. She gets bored sometimes.”

Andrea blinked back.

Lando stared like he’d been smacked with a front wing. “Wait— she got a doctorate?!

Oscar nodded, chewing. “Yeah. Finished it in 2022. She was stuck in that horrible flat in Enstone while I was back and forth with Alpine, and she got bored. Wrote most of it at the kitchen table while Bee napped.”

Andrea just… stared. 

He had read the thesis. Studied it. The mathematical modeling alone had kept him awake at night—and she had apparently written it during toddler nap times, while stuck in a damp shoebox flat in Oxfordshire.

Zak looked up slowly from his tablet. “Your wife was bored . So she got a PhD in mechanical engineering .”

Oscar shrugged. “She already had the research mostly done before Bee was even born in 2020. She just had to write it up. Bee was napping a lot anyway.”

Sophie blinked. “She wrote a 200-page dissertation with a toddler in the house?”

Oscar just shrugged. “It helped that Bee liked the sound of the keyboard.”

Andrea turned to Zak, still stunned. “She predicted the kind of high-frequency oscillation we’re seeing this season. Two years ago. In a footnote.”

Lando leaned forward like he was watching a live feed of someone discovering aliens. “She’s just, like, a genius?” he asked, voice too loud, too incredulous. “And you never brought it up?”

Oscar just sighed. “She hates that word.”

Andrea just stared at him. “Oscar, she’s not just good. She’s formidable. Has she ever applied anywhere formally?”

Oscar looked genuinely confused. “Why would she apply anywhere?”

Andrea stared. “To work. In engineering. In motorsport. Academia.”

Oscar blinked. “She does work. She manages our lives, Bee, the house, and the chickens.”

Lando leaned toward Andrea, wide-eyed: “I’ve never felt dumber in my entire life.

Andrea sighed. “Join the club.”

***

The kitchen smelled like vanilla and wood polish and faintly like chicken coop — which meant Felicity had mopped and baked and wrangled Mansell, the escape artist hen, all while probably rebalancing one of their stock portfolios.

Oscar dropped his bag by the door and leaned against the kitchen entryway.

Felicity was sitting at the table in her old university hoodie, feet bare, Bee curled up under her arm asleep with Button the frog as a pillow. There were spreadsheets open on one side of her laptop screen, a half-watched nature documentary on the other, and one of Bee’s plastic toy bulls standing solemnly in the middle of the table for reasons unknown.

He smiled.

God, he loved her.

“Hey,” he said softly.

Felicity glanced up. “Hey. Dinner’s in the oven. Bee passed out mid-pie crust.”

“Excellent,” Oscar said, dropping into the chair beside her. “Because I need carbs.”

She raised an eyebrow, equal parts amusement and curiosity. “Bad day?”

“No. Just... intellectually humbling.”

Felicity made a low amused noise and went back to her laptop. “Did Lando try to explain crypto again?”

Oscar snorted and reached over to carefully lift Bee into his lap, her curls warm against his hoodie. She barely stirred.

He could have let it sit. Saved it for later. But it was buzzing under his skin.

“Stella read your papers.”

That got her attention.

Felicity paused, her fingers stilled mid-scroll. “Which one?”

“All of them,” Oscar said. “Apparently it started with one of the engineers, who brought an article in from Race Systems & Applied Motion. Then he spiraled.”

“Ah,” Felicity murmured, unsurprised. “That one had a good diagram.”

“He found your thesis,” Oscar added.

This time she didn’t answer right away.

He reached for one of Bee’s crayons and twirled it idly in his fingers, watching her.

“He read the dedication,” he said, voice quieter now.

Felicity’s eyes softened in that way that always undid him a little. Always had.

“Did he say anything?” she asked.

Oscar smiled faintly. “He said you’re formidable .”

There was a beat of silence.

Then Felicity laughed—not loud, not startled, just warm and wry and a little disbelieving.

“God help the man,” she said. “He must have hit the rebuttal piece from the Vehicle Design Journal. That one made a few engineers cry.”

Oscar grinned. “Yeah, well. He was halfway to building you a shrine by the end of the meeting. I also told him you got bored in Enstone and wrote your PhD while Bee was napping.”

Felicity gave him a look. “You make it sound like I was scrapbooking.”

“Weren’t you also doing that at the time?”

Felicity blinked. “...Okay, fair.”

Bee stirred slightly in his lap, a tiny sigh escaping her lips as she nuzzled deeper into his hoodie sleeve.

Oscar looked down at her—this tiny human they somehow made and raised—and then back at the woman across the table. 

Her hair was messier than usual, strands escaping her braid, and there was a faint flour smudge near her temple. She hadn’t bought herself a new pair of jeans in two years. She sometimes forgot to eat when she was buried in simulations. She once fixed the bathroom plumbing at midnight because she didn’t like how the guy from the hardware store spoke to her.

She was the smartest person he knew.

Oscar knew most people wouldn’t think it when they first met her. She smiled too easily. She didn’t correct anyone. She let others assume things—that she was just the girlfriend, just the wife, just the mother.

But she had a doctorate from Oxford, and more published academic papers than most career professors. She could hold court with race engineers and theoretical physicists in the same breath, then go home and teach Bee how to build a pulley system out of Lego and twine. She spoke in quiet, exact terms, and when she challenged people, she did it so gently they sometimes didn’t notice until it was too late.

He’d long since stopped being surprised by her. He’d just—normalized it. Integrated it. Felicity being a genius was like oxygen to him: invisible, essential, and easy to take for granted until someone else nearly passed out from the realization.

She was just Fliss to him. 

The woman who sold her designer bags to pay rent when her family cut her off. The mother of his child. His fiercest critic and his most devoted supporter. The one person he trusted without hesitation.

She didn’t want headlines or praise. She wanted quiet mornings and clever puzzles. She wanted Bee to grow up confident. She wanted Oscar to remember to eat something green.

She was the smartest person he knew — and she hated being called smart. So he didn’t. He just came home.

“He called you formidable,” he repeated. “And I agree. For what it’s worth.”

Felicity smiled then—slow and quiet, the kind that reached all the way to her eyes.

She leaned across the table and kissed his temple. “Thanks,” she said. “But if he asks me to consult, I’m charging him triple.”

Oscar laughed softly and ran a hand through Bee’s curls. “Deal.”

And he meant it. Because maybe it was easy for him to forget sometimes, tucked into the quiet rhythm of their life, that the world hadn’t caught up to how brilliant she was.

But he never stopped being proud of her.

Not for a second.

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