Re: rear caliper brake hose
Calipers are specific to the car ... they may be shared on other models and makes though.
156s had two different types of rear caliper and pad so you have to make sure you get the right version. Early cars had a ribbed caliper, and the pads are fitted with a spring at the top. Later cars had smooth calipers, slightly larger discs and pads with no spring and locating tabs about half way up.
Go to brakeparts.co.uk and use their online catalogue. They list both types of caliper and the flexible hoses.