My husband snapped this extremely flattering picture of me while I was working on installing the new seat in the Invacar. Figured it was actually a decent shot to show how compact the cabin is, as it's a bit tricky to really scale in a photo without a known frame of reference.
It's actually comfortably roomy for one occupant, quite a bit more so than some of the microcars I've sat in.
Having made the decision to fit a more comfortable seat than standard, I can see this actually not being too torturous a place to spend time on longer trips.