Child seat in caterham

[MikePRT90]

I’ve been reading that it is illegal to use a child seat in a car with a vehicle installed harness….although the uk regulations on car seats do mention “harness”, this is in reference to a harness integrated to the child car seat itself, and not the harness of the car. Apparently this is to do with testing….although personally I can’t see how a child in a booster seat is more safe with an inertia seat belt compared to a booster seat and 4 point harness.

I also have read there is a Volvo booster seat that is a perfect fit for a caterham, does anyone have the product code as I can’t find it.

Does anyone still take their kids as passengers in the car? My youngest is 6 and is 20kg.

Thanks, Mike