This is the only thing I didn't like about the Ford Energi. In terms of normal use, the space is fine. I think the space for passengers and drivers might be better than the Prius. But the trunk space is rough. The battery takes up a large portion of the trunk so you won't be able to transport large items in the back. If you own a second vehicle with space in the back, trunk space might not be an issue. We do a lot of home improvement projects so it's nice to have the option to transport big stuff- but our minivan can do that. The only time I had an issue was when I wanted to bring the kids to ride their bikes... there was no way I would've fit even one small kid's bike in the back... or the front for that matter. If I owned one of these vehicles, I would consider putting a bike rack on the back or top of the vehicle.