Peter,
it is still under warranty as is my car. Krazy Horse & MMC were very good on warranty issues after I had it inspected at KH which showed a leaking rad.
Central Morgan who I bought it from didn't spot the rad but the brake fix was done.
I bought my car first registered in May 22 in July with just 1900 miles for £57k & it was the cheapest dealer based car. So £35k plus 16% is a good deal if it goes for that.
I don't see why MMC wouldn't do the same for this car. But I agree buying at auction is risk