Carbon Six

About

Thomas Li

Founder of Carbon Six.
Co-founder and former group CTO of Chassis Autonomy.
20+ years of engineering, ensuring that things which must not fail, don’t.

Prove the design. Don’t engineer it to pass a programme review.

How I lead

Speed comes from trust

Two years into Chassis Autonomy we opened our own workshop and test centre. It was a genuine milestone — the moment we stopped borrowing other people’s facilities and could build and test our own hardware on our own terms.

When I spoke at the opening, I spent almost all of it on the people standing in the room. Every one of them had taken a real risk to join an early-stage company building something that did not yet exist, and the facility we were all admiring existed only because they had. Bricks and mortar are the easy part. They are also the part that gets celebrated.

I have always run teams on the same basis. Engineers are given the context and the authority to make their own decisions, because people who are trusted to decide things get better at deciding things. I stay reachable while they do it — and on the days I genuinely cannot stop, I say so and come back, rather than leaving someone to wait and guess.

Fail fast is a cliché, particularly in deep tech, but there are two layers to it. One is the product: build it, test it, break it, and improve it fast — spend the money on proving the design, not on engineering it to pass a programme review. The other is the person. I give engineers enough support to keep their heads above water and deliberately no more, because the mistakes they make themselves are the ones that stay learned. The two layers need each other: a team that has not been allowed to be wrong will not break its own hardware honestly, and hardware that never gets broken teaches nobody anything.

And I have worked in too many organisations where decisions simply do not get made. We’ll pick it up next time. Go and get more data. Nothing is ever refused and nothing ever moves. Where a call genuinely cannot be settled on precedent or evidence, I will find the one data point that tips the balance and make it — because a decision that turns out to be wrong has still moved the work forward, and you can fork back to the branch you left. Standing still is the only option that teaches you nothing.

2001 → now

The sequence

2001 – 2004 Oxford Brookes UniversityBEng Automotive Engineering, First Class Honours, IMechE accredited.
2006 – 2011 Formula 1 · HITCO Carbon Composites, SGL GroupSenior race engineer. Carbon-carbon brake disc design, trackside at every Grand Prix and test. Both titles with Renault and Alonso in 2006.
2012 Carbon Six foundedRegistered in England and Wales. Trading through to 2022, paused by choice, resumed 2025.
2012 – 2020 Nissan · McLaren Automotive · Jaguar Land Rover · Bentley · NEVSBraking systems leadership across five vehicle manufacturers — head of brakes at McLaren and at NEVS, attribute lead on the Jaguar F-Type, foundation brakes on the Continental GT, and a chassis cost reduction programme at Nissan returning over €24M a year. All but McLaren contracted through Carbon Six.
2015 – 2022 UK police forcesMetropolitan Police and South Yorkshire Police — vehicle technical standards and technology, operations and procurement, and ways of working.
2021 – 2026 Chassis Autonomy · co-founder and group CTOSpun out of NEVS. Modular steer-by-wire from first principles to ASIL-D production readiness. Twenty-five engineers, sixteen patent families, £3.2M non-dilutive. Acquired by Kongsberg Automotive, August 2025.
2025 – Carbon Six · advisory, and building againSelect engagements. A new company, early and deliberately quiet.

Dates and roles, corroborated on my LinkedIn profile

The name

Where the name comes from

Carbon is the sixth element of the periodic table, and it is what I spent the first decade of my career working with.

Formula 1 brake discs are carbon-carbon — carbon fibre reinforcing a carbon matrix, run at temperatures where most materials become liquid. From there it was carbon-ceramics at McLaren and Bentley. By the time I registered the company in 2012, carbon was the only thing my whole career had in common, and six naturally came with it.

The logo mark follows the same logic. Six sides for the sixth element, and a hexagon because that is how carbon actually arranges itself — six atoms to a ring, repeated, which is what gives graphite its planes and a brake disc its extraordinary behaviour under heat.

The Carbon Six mark

If you want the longer version — what I built, how it was funded, and what I would do differently — just ask.

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