Investigators told the German business journal Handelsblatt they were puzzled as to why Audi would produce vehicles under common VIN numbers.
One of the Veloces at the show will sport a new color of blue, but it's not clear if that's a package-exclusive color or just another option.
Varsovia Motor Co. says its posh sedan will go into production sometime after 2018, and will be produced in limited numbers.
The 184-hp, naturally aspirated 2.5-liter four-cylinder SkyActiv-G engine carries over, as do the six-speed automatic and six-speed manual transmissions.