These types of cars don't make sense. Whilst it might do 88MPG, high MPG starts to make sense the more miles you do, but who is going to want to do lots of miles in that. I wouldn't want to cover 12,000 miles a year or more in an underpowered supermini.
Also, new cars depreciate so much that fuel costs are far less significant. Therefore green mobiles usually make sense for company car drivers due to depreciation being taken out of the equation. Who is going to have one of those as a company car?
I just don't get where it fits in the marketplace. Saying that, if it does consistently get 88MPG, it's quite a feat. It's also a decent looking car.