Fiat Chrysler Automobiles may have only one new model built in North America over the next 18 months after executives pushed back development of others due to brisk sales of current models, Reuters is reporting.

The redesigned Chrysler Town and Country minivan may be the only new car built stateside that FCA plans to launch in the next 18 months, sources told Reuters. The company is planning to bring to the United States three Italian cars — the Fiat Spider, Maserati’s crossover and the Alfa Romeo Giulia — in the same timeframe.

This is the part where we would like to mention that a new Jeep Grand Cherokee and Wrangler are seriously overdue.

The reason for the delay in U.S.-built cars also could be the application of the time-tested Georgia farmer theory: “If it ain’t broke, don’t fix it.”

Wrangler sales are booming this year, Grand Cherokee’s numbers don’t suck either and Jeep is doing pretty well with just the Renegade as its new product this year. According to the story, the Wrangler redesign is now slated for 2017 and the Grand Cherokee overhaul should arrive in 2019.

Earlier this year, FCA CEO Sergio Marchionne said he was hesitant to shut down the Toledo Wrangler factory for retooling when the company needed the plant to produce so many cars.

“If I shut it down for 60 days, I’d lose more money than I’d make in a year,” Marchionne said.

Comparatively, General Motors will launch six new North American vehicles in the next 18 months, according to the report.