Credited with modernising the brand's design language, Callum will soon leave his post as Jaguar's head of design after 20 years.
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Ian Callum will step down from his position as design director of Jaguar, and will be replaced by Julian Thomson, the company's creative design director, on July 1, 2019.

After beginning his career at Ford in 1979, and Callum joined Tom Walkinshaw Design in 1990, where he played a part in designing the Aston Martin DB7, Vanquish and DB9.

Callum was made Jaguar's design director when Geoff Lawson passed away in 1999. For a short period, Callum was head of design for both Jaguar and Aston Martin, both of which were part of Ford's Premier Automotive Group at the time.

He was given the task of modernising the company's design language, and has named the 2007 XF as "one of my biggest highlights" as "it represented the beginning of a new era moving Jaguar from tradition to contemporary design".

Although it was based on the same platform as the retro S-Type it replaced, the XF took the company into the 21st century and served as the template for all subsequent Jaguar models, including the 2009 XJ, 2012 F-Type and the company's first crossover, the 2015 F-Pace.

At this year's New York motor show, Callum accepted the I-Pace's World Car of the Year, Green Car of the Year, and Car Design of the Year awards on behalf of the automaker. He described the day as his "Oscar moment" after 40 years in the business.

Julian Thomson, currently Jaguar's creative design director, has been named as Callum's replacement. Callum will continue working with Jaguar as a consultant.

Thomson graduated from the Royal College of Art in 1984, and worked at Ford, Lotus and Volkswagen before joining Jaguar in 2000.

"I have worked closely with Julian Thomson for 18 years. He is a hugely talented designer and absolutely the right person to lead Jaguar design into its next chapter," Callum said in a prepared statement.