I have the original towbar from Renault, that swings and hides under the bumper, but it costed a fortune 3 years ago (1200 euro with installing). I also use it only for bikes. Recently I've noticed in the German forum that there was a monstrous discount and it was reduced to something like 300-400 euro with the labor, which is much more acceptable. It might be worthed doing some research in your area. I think there's also a cheaper non-swingig version, but I ain't seen it. Anyway it's much more expensive compared to roof and rear windscreen options, but in your case might be the only possibility. I would also consider searching for second hand or from crashed vehicle.
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1.6 dCI, 2WD, Zen+ , Retractable Tow Bar.
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