In preparation of possibly getting the XC90 or another large vehicle, I actually expanded my garage by 500 square feet last year (up to ~1100 square feet total), widening each of the existing doors from 8 to 9 feet wide and adding an 9x8 foot door for the new bay(s). I have plenty of room for the XC90, Q7, 70D, etc. but I do need to upgrade the electrical. I'm researching adding another 100 amps of electrical to the garage since the 'fastest' outlet I have currently is only a NEMA 6-20 outlet.
I was actually considering the Volt for a long time as well. I was really hoping they were going to have an AWD option or that GM would have a CUV version available but after they announced the 2016 model, I gave up. I suppose I could still get a Volt now and use it for my daily driver and then just use the old SUV for snowy days. That might get me by until the Model 3 is out...but the 70D is available now. Argh.