OK, just back from my meeting (which was very dull!) and I think I've found the remaining information that was needed. This 3D-printed 'Dodge Osis' model was created in 2015 by student Thomas Belhacene, taking inspiration from the Mazda MX-5 (Miata) as well as Chrysler's own Plymouth Prowler. It was mentioned in a small published Top Gear piece (not the TV show) in 2016.