Focus on the issues

I thought David Cameron edged it in Prime Minister's Questions today, the first since the Crewe and Nantwich by-election.
The exchanges were on planned changes to Vehicle Excise Duty, but it was the under-fire Gordon Brown who started the strongest, making some decent points about the holes in the Tories' own car tax policies and reluctance to follow their green rhetoric to its logical conclusion.
Mr Cameron meanwhile was getting bogged down in an attempt to argue there are 40 different types of Ford Focus, not one as the Government says. I didn't understand where the Tory leader was going on this one – a diesel Ford Focus will end up paying less road tax, not more, under the Treasury's new payment-by-pollution scheme.
No matter. Soon Mr Brown was losing his footing and Mr Cameron making a few jokes about how the PM was being told to get on his bike, and so on. The political wind is in Mr Cameron's sails, and sooner or later that starts to show at the despatch box.
One odd aside – reading out the thoughts of a series of anonymous Cabinet Ministers quoted in the Times, Mr Cameron pointed out was alleged to have said the Prime Minister was "crap at communication". Surely not parliamentary language? The Speaker didn’t call him up on it, but then Michael Martin did call Boris Johnson, appearing in his last PMQs before stepping down as MP for Henley, the 'Lord Mayor', (twice), which he isn't – this man is.
And don't think I didn't notice Mr Cameron's new centre-parting either.
UPDATE at 1600. The helpful office of shadow Chancellor George Osborne have been on to point out that yes, there are 40 models of Ford Focus, and owners of 29 of them will be worse off under the changes. For some reason they forget to mention that 23 of those 29 models will attract an extra charge of just £5 or £10 by 2010-11 - not much after inflation, surely?