I ran into something like this this past weekend.
The paint/aesthetics weren't this nice, but it was shortened similarly. We were both on the road and passed each other going opposite directions at about 25-30 so I didn't really get a good, detailed view.
I'm not sure if it was solid like ^^ or if it had tiny doors.
But it wasn't like this
Having a top probably makes the modification a bit tougher.
__________________
Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa

SOLD 2004 - gone but not forgotten