Feb.7 (GMM) Eric Boullier has admitted frustration with the FIA's decision to ban reactive ride height systems.
Lotus looked to have stolen the march with the clever technology ahead of 2012, but when the other teams started asking the governing body for approval, the FIA closed the avenue altogether.
"We invested time and money and always kept the FIA informed of our progress," team boss Boullier is quoted by Italy's La Gazzetta dello Sport.
"It was frustrating, but it will not impact on our performance," he insisted.
The Finnish broadcaster MTV3 quoted the Frenchman as elaborating: "It took a lot of time to get the system in place -- a couple of years in fact.
"We are not stupid so we checked the progress with the FIA at all stages. We believed it was beneficial, but the benefit would not have been massive," he added.
The benefit also would not have been immediate, as explained by technical boss James Allison.
"We would not have used it in the car from the very start," he told Auto Motor und Sport. "For us, it was part of the development programme."