Merc SLR assemble line...

There's a reason why you're paying over 600,000 pounds sterling for this car ok. These are hand assembled cars and very exclusive in the sense that only rich and priviledge people can own this car. Mclaren probably assemble like 100 of this cars per year. Obviously it needs to be done in detail. As for cleanliness of the factory, i guess thats just European standard. But then again, you don't know which part of this is the factory. It could be one part whereby you require the factory to be extremely clean where else there could be other part of the factory not as clean, so it depends.