About Ilmor

At Ilmor, we are passionate about pushing the boundaries of what is technologically possible. Our continuous drive to maximize both power and simplicity led us to many great successes, especially in motorsports.

Vision statement

at ilmor Engineering

We are committed to continuously improving and adapting high-performance powertrains for a more efficient and sustainable future.

Making the


At Ilmor, we are passionate about pushing the boundaries of what is technologically possible. Our continuous drive to maximise both power and simplicity led us to many great successes, especially in motorsports. 



We create powertrains and components for the world’s leading companies. We are known for our ability to innovate under immense pressure and when the stakes are high.

Our unique approach to problem solving, together with our decades of expertise and state-of-the-art facilities, enables us to quickly discover solutions to our clients’ most challenging problems.

We strive to get the best results in the most efficient way possible, an aim which has led us to win championships and develop the future of eMobility and other technologies.



Two individuals speaking to one another
Ilmor was founded by Mario Illien, Paul Morgan and Roger Penske, initially to design, develop and manufacture an IndyCar engine.
With the backing from General Motors under the Chevrolet banner it quickly became successful in IndyCar racing, taking its first win at Long Beach in 1987 with Mario Andretti.
Concept & Design
A race car
In 1988 Ilmor achieved the milestones of its first Indianapolis 500 with Rick Mears and CART championship with Danny Sullivan.
After repaying the loans from Penske and GM Ilmor started with the design of a Formula 1 engine initially for the F1 Leyton House Team and later for March and Tyrrell.
Outside shot of builing
1990 saw the Ilmor business expand to the USA with the establishment of Ilmor Engineering Inc. in Plymouth Michigan to provide engine build and trackside support for the supply of IndyCar engines.
In November 1993 Mercedes-Benz announced their collaboration with Ilmor, providing the financial backing for the V10 engine supply to Sauber
Engineers stood behind a race car
Race winning engineers and car
The Mercedes 500I Indy V8 dominated the Indy 500 was on Pole and won the race. After the one race success the engine was banned.
Mercedes-Ilmor began the successful collaboration with the McLaren Formula 1 team which continued for 19 years.
Engineering team stood together
Race car driver pointing to the distance
Ilmor achieved its 100th IndyCar win Emerson Fittipaldi driving for Penske at Nazareth Speedway.
In Melbourne at the first race of the season David Coulthard took the first Formula 1 win for an Ilmor designed powertrain.
In 1998 and 1999 Mika Hakkinen drove an Ilmor designed powertrain to win the Formula 1 World Championship.
In 1998, the decision was made to broaden the Ilmor business base and a separate offshoot began to grow, first around a project to produce components for Roger Penske's NASCAR team.
In 2001, Ilmor began to develop the GM IRL engine, which led to a speculative engine design for the 2003 rules and the beginning of the relationship with Honda until 2011.
On 12th May 2001 Ilmor Engineering Ltd lost Paul Morgan in a plane accident.
Concept & Design
A Honda car engine
The IndyCar engine for Honda dominated the 2004 and 2005 season  and became the sole supplier for the IRL IndyCar series between 2006 and 2011.
Ilmor started a development partnership with a new Formula 1 Engine supplier which resulted in both the drivers and manufacturers championships.
Chevrolet car engine
Ilmor embarked on a new IndyCar partnership with General Motors, bringing the Chevrolet brand back to the IndyCar series to compete with Honda and Lotus.
In 2005, the Formula 1 division of Ilmor was sold to Mercedes-Benz. Ilmor continued to design and manufacture the Honda IndyCar engine used exclusively in the IRL IndyCar series.
In 2019, Ilmor reached the milestone of 21 successful Indy 500 wins with Simon Pagenaud driving for Penske.
A race car winner standing victorious on his car
Co-Development of OEM Factory Formula 1 Engine.
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In 2022, Ilmor surpassed 350 wins in all IndyCar series. In the same year, Ilmor also achieved their 23rd IndyCar Manufacturers and 21st IndyCar Drivers Championship.


Our Team

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Mario Illien

Technical Director
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Steve O’Connor

Managing Director
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Ian Whiteside

Chief Engineer - Advanced Projects
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Phil Rogers

Chief Financial Officer
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Ben Chapman

Chief Engineer - Racing
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Neil Turner

Operations Manager
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Our Team
Whole Team

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