Research notes
Sean O'Shea is the Motorsport Propulsion Manager at Cadillac Racing, focusing on the performance and development of the team's 5.5-litre V8 engine and hybrid system. This was one of the newly created roles during Cadillac's 2025 LMDh technical team expansion. He has previous experience at Bosch Motorsport and led the development of GM's Blazer EV police pursuit vehicle programme (the industry's first EV to meet pursuit-rated standards) at GM. The DailySportsCar Cadillac Racing / GM appointment report uses a composite image of three people, with the file name and reporting context labelling the three as Keely Bosn / Xavier Marcos Padros / Sean O'Shea in order, with Sean O'Shea on the right;
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