No worries Gavin. I spotted this the other day,

Volvo got it wrong with lines and colour coding on the gauge, I'm sure is should read from left to right on our gauges, poor, very poor and p*** poor! As someone on the forum once said something along the lines of, the econ gauge is quick, but it's the second fastest moving gauge in relation to the fuel gauge!

Full item here.....(I have no links with the seller)
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... %3AIT&rd=1

interesting...
My dad's smiths vacuum guage does the same thing... albeit mounted in an icecream tub at the moment...

Those are not good.. They are missing the fun section which is called BOOST.