I don't have a home charger (parking space is about 50m from house, I own it but not the land between so it's too much of a pain in the arse to try and get one installed). I think I have a similar usage to you, short trips around town most days and the occasional 100+ trip at weekends,
I've had an M3 LR since February and have not found any problem with using superchargers/local charge points. I do appreciate this is not the cheapest way to charge the car and in the long run it would likely save me money if I could home charge.
However, any long trips we've had are easy with the supercharger network. There are charge points at my local Tesco, Asda, cinema, shopping centre and there's now one across from where I work (I walk to work but could take the car if it needed filled up) and there's one being installed in the car park next to the gym we visit most mornings. There's actually one being installed in my private car park (but not sure if this is going to be reserved for the CoWheels car club).
So, to answer your question, yes I think it's viable to own an electric car without home charging (note I didn't say easier or cheaper)
I've had an M3 LR since February and have not found any problem with using superchargers/local charge points. I do appreciate this is not the cheapest way to charge the car and in the long run it would likely save me money if I could home charge.
However, any long trips we've had are easy with the supercharger network. There are charge points at my local Tesco, Asda, cinema, shopping centre and there's now one across from where I work (I walk to work but could take the car if it needed filled up) and there's one being installed in the car park next to the gym we visit most mornings. There's actually one being installed in my private car park (but not sure if this is going to be reserved for the CoWheels car club).
So, to answer your question, yes I think it's viable to own an electric car without home charging (note I didn't say easier or cheaper)