DIARY: General Motors offers 'salvation' to McCann

If ever there was an advertising agency and a client that appear to be made for each other, then it has to be General Motors and McCann-Erickson.

The global automotive Goliath's latest US campaign aims to reassure customers that, despite years of underachievement, the company is now on its way back to being one of the world's best car manufacturers.

So if you're advertising to apologise for your former sins, then who better to create the work than the network that put the "fun" into "fundamental accounting errors"?

In the first ad, the company claims that "the longest road in the world is the road to redemption".

This, some might say, is an ethos that is equally relevant to an agency that's currently being investigated for the kind of fiddling even Yehudi Menuhin would be proud of.