Does a Renault4 petrol tank fit in a Phase 1 Renault 5?

[harbourseal]

Hi all, A friend of mine asked me if he can fit a Renault 4 petrol tank under a Phase 1 Renault 5.
I haven't the foggiest.
Does anybody know?

 

[mr-reno-139]

Completely different

 

[harbourseal]

Completely different

Thought so. Thank you Paul.