Sutton Images Enlarge Romain Grosjean believes Lotus main deficiency is now power after the team made a significant step forward with the chassis at the last round in Spain. Grosjean scored Lotus' first points in Spain with an eighth place finish, but qualified as high as fifth and was hopeful of a more competitive race had he not had a power unit issues. With Lotus finally understanding and extracting performance from the chassis, Grosjean said he was looking forward to Renault and fuel supplier Total unlocking more performance from the power unit. "I think what we need is power and that's not something that I will feel easily," he said. "If you give me 20 horsepower more...
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