 Complete the following phrase:  In 1989 Barnard pioneered the electronic gear shift mechanism  now known as a semi-automatic gearbox  which was operated via two paddles on the steering wheel. This revolutionary system had proved fragile in testing since early in 1988 and many in F1 were expecting it to fail. However, new team recruit Nigel Mansell took the new V12 powered Ferrari 640 to victory first time out at the Brazilian Grand Prix in Rio de Janeiro. Barnard had instigated his second technical revolution, and by every team was running a copy of the Ferrari gearbox. This would unfortunately be the only finish recorded by either Mansell or Berger until Round 7 when Mansell finished second in the 