Carbon Six

Track record

Twenty years.
Three disciplines.
One methodology.

Decide what has to be true. Prove it. Design so that being wrong is survivable. What follows is where that has been applied, and what it produced.

The company

Carbon Six

2012 – present

Founder and Managing Director

Carbon Six is the company through which most of the engineering and fleet work below was delivered — by Thomas Li as Managing Director, alone where that is enough and at the head of an assembled team where it is not. The most senior person on the engagement is also the one doing the engineering. Paused by choice in 2022 to give Chassis Autonomy undivided attention; resumed in September 2025, a month after the Kongsberg Automotive acquisition completed.

01

Safety-critical vehicle engineering

Braking and by-wire systems for four manufacturers, across conventional, electric and automated vehicles. All contracted through Carbon Six.

Nissan 2012 – 2013 via Carbon Six

Braking Systems · Chassis Cost Reduction Programme

Lead engineer for the braking system on the new Nissan Note. Separately ran the cost reduction programme for the entire chassis department, returning over €24M a year.

Jaguar Land Rover 2014 – 2015 · via MIRA via Carbon Six

Attribute Team Leader · F-Type

Owned pedal feel, brake performance and refinement on the Jaguar F-Type through to sign-off, and chaired the attribute meetings with suppliers and JLR senior management.

Bentley Motors 2015 – 2016 via Carbon Six

Foundation Brakes · Continental GT

Lead design and development engineer for the carbon-ceramic system on the Continental GT platform, against some of the strictest refinement targets in the industry.

NEVS 2017 – 2020 · Sweden via Carbon Six

Head of Brakes

The entire braking system across all electric vehicle programmes, leading engineers in Sweden and China through the build of a new plant. Also led the squad that delivered the first steer-by-wire prototype — the technology later spun out as Chassis Autonomy.

02

Emergency fleet technology

Safety-critical vehicle engineering and risk-based methodologies, applied in the public sector to emergency service fleet operations.

Metropolitan Police
South Yorkshire Police
Public sector programmes via Carbon Six

Fleet technology, procurement and ways of working

Risk-based methods applied across procurement, vehicle evaluation and maintenance, delivered at the head of a team — replacing precedent-led decisions with evidence-led ones, and coaching the teams so they carried on making them after we had gone. The South Yorkshire work was contracted in support of the National Association of Police Fleet Managers.

The Met brake test

Not published outside the Metropolitan Police and a small number of brake friction suppliers, and so not described here. Inside UK policing it needs no introduction: the most severe brake energy test applied to a road vehicle anywhere in the industry, and the reason no Metropolitan Police vehicle — nor any national fleet that has since adopted it — has suffered a brake failure. Thomas did not write the test. He verified the process and the test method, introduced the automated data collection and analysis behind its current form, and supported the Met’s drive to have it adopted across the UK’s 43 forces as best practice.

Blue-light fleets now face a harder problem than either electrification or automation alone: vehicles arriving with substantial ADAS content, bought through frameworks, converted by supply chains, maintained by workshops and driven under training regimes that were none of them designed for it.

Carbon Six were invaluable in getting us to where we are today. They managed where we failed, to get the team on board and retain their positivity.

Head of the UK’s largest emergency service fleet operation

Thomas Li being filmed in front of a Metropolitan Police vehicle lineup
Colindale, 20 June 2025. On location with the Metropolitan Police Service, filming a short piece on the rigour and criticality of evaluating blue-light vehicles for safety and fitness for purpose.
03

Chassis Autonomy

A separate venture, not Carbon Six work — but the clearest demonstration of what the same methodology can do when it is building a company from the ground up.

Chassis Autonomy 2021 – 2026 Co-founder

Co-founder, Group Chief Technology Officer and Board Director

Modular steer-by-wire for automated and electric vehicles, taken from the prototype Thomas led at NEVS through to ISO 26262 ASIL-D production readiness. Acquired by Kongsberg Automotive, August 2025.

  • Owned the architecture and the technical roadmap. Named inventor on the originating patent and on nearly all of the sixteen families that followed.
  • Led every funding round and pitched every investor. Wrote, submitted and presented every grant application — £3.2M non-dilutive, no failed bids.
  • Scaled engineering from nothing to twenty-five people across the UK and Sweden.
  • Represented the company on stage — speaker and panellist alongside ZF Group and IAV at the 2nd China Automotive Steering and Braking Systems Summit, Shanghai, 2025.
Thomas Li presenting Chassis Autonomy’s concentric direct-drive steer-by-wire at a conference in Shanghai
Shanghai, 16 May 2025. As the public face of Chassis Autonomy, Thomas presented the company’s concentric direct-drive technology and joined the panel at the 2nd China Automotive Steering and Braking Systems Summit.
04

In-house roles

Before Carbon Six became the focus, Thomas held senior engineering roles in Formula 1 and at McLaren Automotive — employed, in-house, and where the discipline was learned.

HITCO Carbon Composites 2006 – 2011 · SGL Group Employed

Senior Formula 1 Race Engineer

Carbon-carbon disc design, and the development programme that transformed the thermal performance of the braking system. Trackside at every Grand Prix and test, supporting several teams and working directly with their engineers and drivers.

McLaren Automotive 2013 – 2014 Employed

Head of Braking Systems

Brakes for every McLaren programme, current and future, leading the engineers and designers who delivered them. Wrote the design standards their carbon-ceramic systems were built to.

Thomas Li at the pit wall at Bahrain International Circuit during pre-season Formula 1 testing in 2006

2006 – 2011 · HITCO Carbon Composites, SGL Group

I designed Formula 1 carbon-carbon brake discs, and spent five seasons in the pit lane and the garages tuning them with race engineers and drivers — including 2006, when we won both titles with Renault and Alonso.

Thomas Li · Senior Race Engineer

Bahrain International Circuit, 3 March 2006. Pre-season testing, and his first Formula 1 test. Twenty-two years old.