HELP!! Need a Group 1 (preferably erf) car seat for a 3 door Peugeot 206

[GammaDelta]

Hi all. I am looking for a ERF combination car seat for a small 3 door Peugeot 206. I have tried Britax dual fix, Maxi cosy 2 way pearl, Maxi cosi Axiss Fix, Cybex Pallas 2fix, Britax eclipse and first class plus. . They either don't fit or leave almost no space when fitted behind the passanger seat. I have been very kindly advised by the mothercare car seat fitting advisor that I should get a new car. . I wanted to get an erf seat but since the most popular models are not working I am ready to go for front facing. Please advise if you know of any decent car seat that can fit in this small car. I am in the process of buying a new house so new car is postponed for a few months. hence we were thinking of getting a erf seat for now that can fit comfortably once we buy a bigger car in a few months time. my DS is 13mo. Please help. I would prefer a Erf if possible if not then I will buy front facing. TIA.