 Complete the following phrase:  After several years of R  D, with eighty nine different riders consisting of professional motorcycle and car racers, prominent bike enthusiasts, engineers, journalists and regular Sunday riders to help develop the bikes through test rides along with Gurneys busy schedule running a team, six different prototype configurations all have logged thousands of miles before Gurney and his team decided on a sixth evolution, the A-6, with full fairing to be launched in 2002 with an intention to build no more than 36 as it was the number that appeared on the Eagle-Weslake Formula One racer which won the 