LONG BEACH – Officials from IndyCar and manufacturers Chevrolet and Honda are discussing potential 2017 changes for the controversial aerodynamic body kits introduced last season.

IndyCar chairman Mark Miles told USA TODAY Sports on Saturday at the Grand Prix of Long Beach that a uniform kit to be used by both manufacturers is among numerous options under consideration. He hopes to have a plan for next season finalized by the end of May to provide the manufacturers ample design time and maximize developmental expenditures.

“I don’t think aero kits go away,” Miles said. “We’ve got them. We’ve learned a lot. Both companies have learned a lot. I think the questions are more from conforming them in some way to continuing the competition between them, what’s the right mode to be in. We’re looking at possibilities from continuing with some shaping of the extent of the competition between them to every other possibility.”

Honda Performance Development president Art St. Cyr told USA TODAY Sports in an email that “a variety of options have been presented, and all are worthy of consideration and additional discussion.”

Owners such as Roger Penske and Michael Andretti have decried the kits as extravagant, partly because they provide no return on investment. Miles said he’s aware of owners’ complaints in what has become a “hot topic.”

“The body kits, that was a reasonable thing to try (but) it didn’t work out the way it was supposed to. So all right, you go back,” team owner Bobby Rahal told USA TODAY Sports. “I think it’ll go to a spec. All it’s done is cost the teams money and cost the manufacturers money. The cars end up almost looking like each other as it is. What’s the point? There’s better ways to spend money than that. You tried. It didn’t work. Let’s go on.”

Miles acknowledged that design differentiation between Honda and Chevrolet is part of the current review but believes “there are certainly benefits” with aero kits.

“It’s pretty clear that when you’ve got a technical competition – in this case it’s aesthetic and performance – they tend to conform anyway,” Miles said. “They look a lot more similar than they did before. And why’s that? They study each other and they’re going to move to the best model. We’ve got Honda and Chevy and Dallara thinking about that question.”