So - I've just gone through the TFL check for ULEZ and my CLK55 AMG on a June 2003 plate (W209) is exempt according to the online tool. I find that somewhat surprising!
I live within the north and south circular area where the extended ULEZ comes into effect in 2021 and was thinking about selling 'the beast' but am thinking twice now. Also - you used to be able to pick these up for £5k but they all seem to be going for £8k now (albeit for lower mileage ones).
On a side note - the London councils are actively blocking roads as part of the mini Holland scheme and making it more difficult to live with a car in London. It should also be noted that these schemes are a trial for country wide bans from cities in the UK...so to the smug gits in this post - make the most of it ;-)
Is there an upward trend for CLK55s in general? Not many of them on the road anyway - is rarity pushing the price up?