Was there a standard undercoat colour applied to mini clubman?

The paint on my mini is cracking and peeling off. My mini is red but where the paint has cracked off it is yellow underneath.
Would this be an undercoat colour or perhaps just painted red over the top of an original yellow top coat?

Thanks.

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'72 clubbie, 1360,twin hs2,loud.- and currently broken
'06 Ducati Monster S2R 800

Lift up the carpets or look in the boot up at the underside of the parcel tray & other hard to get at spots away from the exterior of the car to see if you can find any other signs of the yellow colour. Most likely a red respray over a yellow previous colour because.... red ones do go faster.

I take it the original paint colour code plaque is missing from the engine bay near the compliance plate!!

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5/72 Clubman GT - awaiting restoration...... & purchase of the missing parts to do so!!!!

Yep original colour code plaque is missing.

Would the yellow be known as Pale Primrose?

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'72 clubbie, 1360,twin hs2,loud.- and currently broken
'06 Ducati Monster S2R 800

red ones go faster ... but yellow ones are race cars.... using Ferrari and Porsche mentality.....

Not real sure about that one sorry.

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5/72 Clubman GT - awaiting restoration...... & purchase of the missing parts to do so!!!!

i think its an undercoat man cause on the corners of my morris its yellow inside the car so im pretty sure its undercoating

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oil leak?..what oil leak..that puddle under the car is just sweat from all that horsepower