Here:
http://www.coroflot.com/mark19/cars
I'm not sure how to post pictures on here, but the Z3 overlay at the top of the link looks very much like a modernised Toyota 2000 GT, to me. Not sure where the Aston influence is in the design.
What a looker though! They famously did a DHC for the Bond film, too. Chris, Dan, over to you. ..