But Lopez said that the decision not to test the new car at Jerez recently is not because Lotus had no money.
"We said that there would be some (technical) trouble and it was actually the case," the Luxembourger, referring to the Red Bull-Renault crisis, told France's Infosport Plus.
"I know we had a lot of criticism, people said we lack the budget but that is wrong because it cost us the same to go (to Jerez) a week later," Lopez insisted.
Lotus gave its new E22 a successful rollout at Jerez on Saturday, a week after the other Renault powered teams, notably world champions Red Bull, faltered so badly.
"Maybe we are better prepared," said Lopez. "Maybe our strategy to wait and work at the factory was the better one.
"We will see in Bahrain. We will not mention the others, or at least not as much as they mention us."