The problem with all of these vehicles is insufficient power for mountain roads and the fact that over the long distances here in Alberta-British Columbia, gas must be used; important considerations for many westerners.
No problem for the city driver. It may be OK for him.
The cost of the Volt vehicle is est. $30,000 or more.

My old 1995 Jeep Cherokee does about 18mpg on the highway, has plenty of power with its 4litre engine, hauls a lot including dogs and gets me there comfortably. It has been maintained and should be good for another 10 years. Its trade-in value is essentially zilch, so any new vehicle means a large outlay.

Two years ago I got rid of my second car, another Cherokee bought in 1985. If one maintains his vehicles, they are good for a long time.

The new hybrids and electrics are interesting, but not for me.