Cool car! I don't think it's a Zimmer, but a similar conversion riding on the Neo-Classic-wave. The front fenders remind me of the CMC Classic Tiffany, but it isn't one of these either.

I'm planning to start a major Neo-Classic identification project at some point here on IMCDB and once the time is right (to be honest, I'm a bit afraid on my own behalf of opening that can of worms...), I will look into this one as well - that's all I can do for the moment.