l would like to buy a C8 but have been told that there are problems with the gearbox failing, can anyone help?

To find out about these cars you need to read up on them via car testing mags l would assume that What car or even Which will have the answer on the reliability of the C5. If you do buy a new one it will be covered with a warranty anyway usually 3 years on most new cars sometimes stretching to 5 years.
If you buying a used one make sure you still have a period of warranty left on it.

You pay your money and make your choice.

Our friend James M is right.
Citroen usually admit their fault and carry out free repairs even after warranty. If they did not yet rectify the fault.


( l wish my car had a Citroen suspension.)