Heel and toe pedals are designed for track use and may not be acceptable to VOSA for use on public roads. Im not aware of anyone having any issues getting through an MOT but please bare this in mine.
With regards to my pedals and grip, here are the MOT guidlines on pedals -
Holes are classed as an anti slip provision in VOSA's eyes so there wont be any issues passing an MOT. Renault pedals from factory do not come with any form of rubber.
Different Pedals are fitted differently depending on the model of car.
If you received just a set of pedals with NO back plate or bolts then please use this guide
If you received a set of pedals WITH back plate and bolts please use this guide