gov.ukThey are as follows: Category A: Car may not be repaired, and must be crushed. Category B: mot check Vehicle may have its usable areas recycled, but it also must depressed. Category S: Car has suffered structural damage, but it is still repairable. Category N: Vehicle has not sustained any injury to its structure, and which may be repaired and safely came back to the road. Note, considering 2017 Cat C and even D have been replaced simply by Cat S and In respectively.