Mercedes chief Toto Wolff is ready to unleash the incredible engine that helped Lewis Hamilton power to a supreme victory at the Sao Paulo Grand Prix eight days ago.
Hamilton was given a new engine for the race in Brazil, which with a focus on performance rather than reliability enabled him to come from last place in the Saturday sprint qualifying race to first in the grand prix after passing chief title rival Max Verstappen.
Hamilton triumphed from pole position at Qatar on Sunday, again in front of Verstappen, using an older spec engine to trim the championship gap to the Red Bull driver down to just eight points with two races to spare.
Lewis Hamilton triumphed at Sunday's Qatar Grand Prix to make it back-to-back wins
The Brit dominated from start to finish at the Losail Circuit in front of Max Verstappen
Wolff though is now ready to bring back the speedy engine which