We've had our LEAF for almost a year now and yesterday my wife checked out a Volt company car and brought it home (for work activities the next day). This is the first time I've sat in and driven in a Volt. I thought I'd share my impressions for those that are curious.
On exterior looks alone, I think the Volt is way sharper looking. It's lines, colors, etc. make it look way sportier than the LEAF. On the inside the front seats are more firm which I like and leg room is a bit more than the LEAF. Headroom, however, is much less. I'm 5'11" and my hair was brushing the ceiling. Back seat is no-contest: the LEAF has more room. My wife had the hatch open when I got in the back seat and when she proceeded to close it I told her to wait until I tilted my head down for fear it would bonk me on the head. My head pretty much touches the hatch when its closed. Again, seat comfort is preferable but it is too small and I personally prefer a bench vs bucket seats (dog, car seat, etc.). The trunk room seems quite a bit smaller than the LEAF as well, though I do like that the EVSE fits nicely under the floor and it wraps up onto itself... and it has a LIGHT!
The instrument displays are very cool with nice graphics. I didn't much care for the touch buttons on the center stack. It had a hard time finding the buttons I was looking for because I couldn't discern a logical layout of where they were. I found the visibility to be a bit lacking. Handling seems noticeably better than the LEAF, however, give the LEAF 17" rims and lower profile tires and it may be comparable, who knows. Acceleration seemed similar to the LEAF. Unfortunately it had depleted its battery charge when I drove it so when I got on the accelerator, the engine revved up to provide the requested amount of electricity.
I still think its a better looking car than the LEAF, with some much better features... Lit buttons for releasing the charging port + release on the keychain, the easy-to-understand wording of the charge type you are setting up ("Finish charging at a certain time" vs "Start charging at a certain time"), etc.
My wife drove it to work from Walnut Creek to San Francisco this morning. We trickle charged it from 1am to 7am and she had a guestimated range of 25 miles of EV driving. Google map routes the trip at 25.4 miles and she made it to work with 2 miles to spare. This route, for those that know it, has a considerable amount of elevation gain. Commute mornings are easier on range with speeds of around 35-40mph but still that's amazingly close for the initial estimate.
Nice car, but I'm still happy I own a LEAF.