Brake Upgrades - 54mm pistons?

[Top Gear TVR]

I've seen the wiki but which calipers have 54mm pistons?

I hear fiesta do but are there any others ?

[phillpot]

Mk 1 Ford Escort

[Barkychoc]

I thought 54mm was standard and 60mm was the 'standard easy' upgrade but feel free to correct me