Get ready for a doing.

[Mojocvh]

So folk have been buying more fuel efficient cars to

1. save the planet
OR
2. save on fuel costs due to the recession [part # as you feel fit]

OR BOTH.

Quote from article below.

"The government announced in the Budget that they will consider whether Vehicle Excise Duty should be reformed to support the sustainability of public finances and to reflect the improvements in vehicle fuel efficiency."

http://www.bbc.co.uk/news/uk-politics-18277311