I don't understand the point. GM outsources Corvette development to Pratt & Miller for their expertise and Mercury Marine built the LT5. Lotus has done a lot of R&D and engineering for many large manufacturers.
No point really other than proving that outsources companies have always been a part of sports car development. I mean Shelby and a couple other shops in the UK were more instrumental in the GT40’s development, and Multimatic for the new GT. Did Multimatic also develop the race version?