Panoz Aiv roadster. It was JRD on the seat that got me there. (In a very roundabout way, looking up JRD Motors led me to see the Panoz name and, I went from there. Don't ask how...)
I was just doing the same thing using the seat brand. Car looks like a happy little 13yr old with braces on.
And, another one: EDIT: New image. The last one, Morgan Eva GT, was never built, not even a prototype, so not strictly a car!
Near enough I think, Citroën DS Familiale. Too little difference between ID and DS to worry about it.