Jarno Trulli is looking forward to driving a much lighter Lotus car at this weekend's British Grand Prix.
The Italian believes the weight reduction will be a huge help for the team, even if it is not introducing significant aerodynamic updates for the race.
"Aerodynamically I wouldn't say it is a big improvement, it's still good but I wouldn't expect to go much quicker just from aero-wise," said Trulli on Thursday at Silverstone.
"But in terms of weight-loss, it is going to be a huge help. We are going to get a much lighter car which will help us to move the weight distribution forward and, in terms of handling, it is going to be much better.
"So the combination of the aero package and a light-weight package, I believe, will have a big impact."
He added: "We are not finished yet because we are missing the suspension which will lose us a further four kilograms. That will not be ready for this weekend and will probably be better for the next one."
Trulli is optimistic the changes will help the team take a step forward that closes the gap to its rivals.
"We expect to make a step and we expect obviously to be closer but as everybody moves forward, we try to move as well. So we don't know how much closer we can be."