Car Seat Split

[willow5]

My understanding is because the tether strap can slip between the split

That was my first thought too. You might need to check your car's manual or call the manufacturer of both the car and the seat.

[Dollyroux]

Poo, it looks like a new car is in my future isn't? Poo, double poo. I know I can get extra bolts installed, so that's no worry. I wonder if I just can replace the back seat with another non-split type? Hmm.....buggery!