This sort of extreme individual customization -- buyers will be able to choose literally any paint color they wish, for instance -- is something that ultra-luxury automakers like Rolls-Royce have been offering for over a century. This is not something that Cadillac dealers are used to, and it remains to be seen how GM will handle the vehicle ordering process. "The overall experience for the customer" will be an important part of what makes the Celestiq stand out, Harvey said in a statement emailed to CNN Business.

Cadillac dealers probably already have customers in mind for the Celestiq, Jominy said. These will be people with multiple luxury cars in their garages, including at least one Escalade, he said.

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"They're already buying [Aston Martins] and others and 'Hey, let me take a chance on this, it looks interesting."

Some might be classic car collectors who already have a 1957 Cadillac Eldorado Brougham in their garage. They might like the modern, electric version to park next to it.

This sort of extreme individual customization -- buyers will be able to choose literally any paint color they wish, for instance -- is something that ultra-luxury automakers like Rolls-Royce have been offering for over a century. This is not something that Cadillac dealers are used to, and it remains to be seen how GM will handle the vehicle ordering process. "The overall experience for the customer" will be an important part of what makes the Celestiq stand out, Harvey said in a statement emailed to CNN Business.

Cadillac dealers probably already have customers in mind for the Celestiq, Jominy said. These will be people with multiple luxury cars in their garages, including at least one Escalade, he said.

*

"They're already buying [Aston Martins] and others and 'Hey, let me take a chance on this, it looks interesting."

Some might be classic car collectors who already have a 1957 Cadillac Eldorado Brougham in their garage. They might like the modern, electric version to park next to it.