That Corsa seems a reasonable enough price if you can live with a Vauxhall, as most cars seem to be bought on the never never systems I imagine this would be a livable amount per month.
Probably the route I'll go down when my hand is forced. Currently they're just over £200 a month to lease, and I'm sure that will go down over time.
My current fuel/tax per month on my current Corsa is about £170 a month, so the savings on no tax, and charging overnight every three days should offset the cost a little.