Hi mate,
Of the top of my head
Shipping Cost - £300 - £600 depending on vehicle size
VAT - 17.5% of (Vehicle Cost + Shipping Cost)
Customs - 10% of (Vehicle Cost + Shipping + VAT)
SVA - If 10 year or older
MOT
DVLA Registration Cost
Numberplates
I imported one a year ago and these were the associated costs then, I have heard that there is now a change in the SVA test, but am not entirely sure.
If you are importing to make money, choose the model carefully.
Due to nature of the import market in the UK, now, you could very easily lose money. I have actually seen vehicles on forecourts here, as cheap as I could import one myself.
Hope this is a help