Wheelbase is 2485 for a 182 IIRC (its more than a normal clio as the 182 has the increased caster arms)
You would certainly get the wheels comfortably onto a 3.3 meter trailer, as the wheel even at the futher point forward is only about 30cm or so (depending on tyre size) so from the front of the front tyre to the back of the rear tyre would still easily be within that, but it will depend on the height of the front and back of the trailer if there is enough space for the bodywork overhang.
I dont think you are going to be able to work it out exactly from numbers, you need to try it as your car could sit slightly higher or lower than someone elses which makes one of them clear the beam and the other not etc.