Densham soon was promoted to the position of race engineer, where he worked with Elio de Angelis in 1984 and Johnny Dumfries the following year.

Away from the race tracks, he did a lot of testing work with Ayrton Senna[3] and Nelson Piquet and eventually became assistant chief engineer in charge of Team Lotus research and development department.

Team Lotus, however, was plagued with financial issues, so in 1990 Densham decided to move on and found a job with Brabham.

In the mid-season he quietly left Tyrrell and soon afterwards began working at a secret design center in Leatherhead, Surrey, on the Honda F1 car.

The death of Harvey Postlethwaite in 1999 resulted in Honda canceling the program and Densham was recruited to be chief designer at Benetton.