A Category D does not mean non-structural, it could well have structural damage. A Cat D is a constructive total loss where the insurer decided not to repair, this means a repair cost of approximately 70 per cent of its market value when it was total lossed. On a 1 Series Coupe, that means repair costs in excess of £10,000. Its value now is approximately 20 percent less than a retailable vehicle without this history. Unless you have it inspected by an independent engineer who knows what he is looking at (find one at www.iaea-online.org/ ), walk away.