T Cut V Auto glym paint restorer
 

Do any guys know which of the above products is most effective BUT also 'kindest' to the paintwork. I have marks where the previous owner/s did not remove bird business fast enough etc

You should always start with the "mildest" product first. T-Cut is quiet abrasive, so I would start with the AG product.

You could look at

Clean Your Car as there is a wealth of knowledge there

Thanks. Looks like a good site!

Just waiting for this b****y rain to stop and as soon as there is a dry day (do you remember them?) and I will wash, use the AG product, polish and wax. I think the whole operation needs to be done in one day as my car lives outside.