[user54268]

Hello
Here are some further design references for your consideration.
The 356 hardtop seems to be similar to your original idea.

This may be a stupid question but can you make the doors bigger ( see Silver Bullett images ) to simplify access? The roof design could then remain lower also.


Porsche 356 Speedster hardtop:
http://www.sportscardigest.com/wp-co...er-620x297.jpg
http://www.heroncay.com/WEB-MD/0-0-S...G_7768-800.jpg
http://static.auto-online.ch/car_pic...457227-1-1.jpg
http://img238.imageshack.us/img238/3208/pic336zi0.jpg

1955 Porsche 356 A 'Silver Bullett':
http://www.autosketch.ru/C9/l-1.jpg
http://www.carandclassic.co.uk/uploa...he/2120618.jpg
http://993c4s.com/wp-content/uploads...frontview1.jpg
http://www.finecars.cc/typo3temp/GB/f48c71b381.jpg

Regards