Merlin Auctions

I was looking at some 2014 Audi A6 and an A7 in Merlin, the previous auction results suggest about 19K for the A6 and 22.5K for the A7 Just looking at the commissions though, and it strikes me that a €16K car will cost €17,184 with the 5% commssion +VAT plus €200 euro indemnity whatever that is. Worse, the seller has to pony up 5%+VAT also plus a minimum €50 fee, €1,034, so he gets €14,966 of the €17,184. That's €2118 to Merlin!. That's way over the margin a car dealer would make, so either the cars go for way less that their value or else they have some issue preventing dealer sale. Why would anyone put a car up for sale knowing that they would be down 2K on the paid price. If it's not a showroom car, then discount it on CBG or autotrader.