The average investment is expected to range from $100 to $220 per square foot, depending on whether the project is a renovation or new construction, he said.
Dealers who have not invested significantly in their stores had to make a commitment by the end of last month, said Eberhardt. Those who have invested more recently have until year end to commit, and dealers with the newest stores will be given even more time, he said.
The first Arch dealership in the United States will be a heavily modified former Nissan store being renovated by the Penske Automotive Group in Darien, Conn. Jaguar Land Rover Darien will open in early summer, Eberhardt said.
The new Arch exterior color is "sunshine grey," for both brands -- shedding the flying cat statues at some Jaguar stores and the white-and-green exteriors of Land Rover dealerships. Eberhardt describes the conjoined buildings as jewel boxes.
The two franchises are connected at an entryway with glass doors.
"We are looking longer term. It is an architecture that is very simple and up to date, Eberhardt said. "We will stay with this for at least 10 years."
The 226 Jaguar and Land Rover rooftops include 114 combined Jaguar Land Rover dealerships and 112 stand-alone stores, he said.