Ford Mondeo (w reg) estate - 3 child seats?

[PregnancyQuery]

Garage is measuring the back for me and I am hunting out details here, but anyone know offhand if it is possible to fit 3 full seats in?

ive got a y reg saloon and can fit 3 car seats in

balls.

Found the various specs for our seats online, they appear to come to 70 odd inches in total (really?!?!), and the car is 54 at a push