Originally Posted by alga
Mounting them on the chassis will make it hard to satisfy the requirement of >45 cm above the reference brick on the seat (IVA 31.16). The seat will really have to be low and thin to pass this.
As for the different size of the examiner, I think I've read they check the belts with you in the seat.
Just to clarify this rectangular piece of 136x53mm does that go all the way across the seat including its sides (I have "Kitparts Direct" grp seats with raised sides) or from the lowest point of the seat as the manual is a bit vague...