Driving to UK - ferry or tunnel 15.06.2018

[Sonja]

Hi all,

I realise this is a bit of long short but is anyone by any chance driving from Belgium or France to the UK with space in the car for me and one small cat?
Foot passengers are not allowed to take pets and sadly a one-way car rental from France or Belgium is upwards of 2000 EUR for the one-way fee.

Please let me know.
Warm regards,

Sonja