100% B2B — closed circle
Only verified and activated professional dealers can bid. No private buyers, no ghost accounts.
100% B2B — verified car dealers only
biet2biet works like an auction house for cars — fully online and strictly B2B. Dealers bid in 48-hour auctions on fully documented vehicles from our own stock; letting registered dealers list vehicles of their own is already in preparation. No buyer’s premium, no middlemen.
Also available as an app for iPhone and Android
Portal in 11 languages

Like an auction house — without the sale room, the fixed dates or the premium.
Register as a professional dealer. After verifying your business details we activate your account — usually within one working day.
Every vehicle with photos, equipment, marked damage, tyre condition and COC data — currently all of them from MKAA direct purchasing. Search alerts automatically notify you of matching arrivals.
Every bid is hidden: no other dealer sees your amount, your company name or your identity — only the number of bidders and the time of the last bid are visible. Your bid is a net amount with no automatic proxy bidding; you can always see whether you are the highest bidder, and an e-mail tells you the moment you are outbid. At the weekend the auction clock pauses: from Saturday 08:00 to Monday 08:00 the countdown does not run on. We can additionally switch off the number of bidders and the time of the last bid — you then see your own bids only.
The seller grants the award. You then take over the vehicle with complete paperwork — currently exclusively MKAA vehicles at our Luxembourg locations.
Three short films — from setup to your first bid.
In preparation — not yet enabled
At present we auction vehicles from our own MKAA stock only. The plan is to open biet2biet in both directions: registered dealers list their own vehicles and let the dealer circle bid — keeping full control over the award. Here is how that will work:
Upload photos, record condition and equipment — the listing is auction-ready in minutes.
Your auction runs within the closed dealer circle, with the clock paused at weekends. Dealers bid hidden from one another — as the seller you track every bid on your own auction from your account.
Accept the highest bid, pick another one or none at all — there is no obligation to sell.

The auction house principle, translated into a fast, transparent online platform for professionals.
Only verified and activated professional dealers can bid. No private buyers, no ghost accounts.
Detailed photos, damage marked on the silhouette, equipment list, tyre tread and COC data — you know what you are bidding on.
Clear runtimes instead of constant monitoring. From Saturday 08:00 to Monday 08:00 the countdown stands still: you can keep bidding, but nobody loses bidding time just because their business is closed at the weekend.
Registration, search and bidding are free. Your net bid is your purchase price — no automatic proxy bidding from a stored maximum, no premium, no hidden fees.
No competitor sees your amount, your company name or your identity — only the number of bidders and the time of the last bid are visible. Your calculation stays entirely your business; you can still see at any time whether you are the highest bidder or have been outbid. We can additionally switch off the number of bidders and the time of the last bid — you then see your own bids only.
Collection with complete paperwork and a handover protocol. At present you pick up every vehicle you win at our central MKAA locations in Luxembourg — quick to reach from Germany, France and Belgium.
From well-kept daily drivers to supercars: currently every auction vehicle comes from our own MKAA stock — direct purchasing in Luxembourg, topped up continuously and fully documented.



biet2biet brings the proven auction house principle to the digital car trade: a vehicle is listed with complete documentation, the dealer circle bids for 48 hours, the best offer wins the award. Unlike open classifieds portals, only verified trade businesses bid here — pricing and settlement stay professional. The plan is to open the platform to sellers as well: registered dealers will then be able to list their own stock and always decide on the award themselves.
At present every lot comes from MKAA direct purchasing in Luxembourg — verified stock, documented and ready for immediate collection. For buyers that means plannable supply for the lot, without fixed dates in physical auction halls and without a premium.
A good auction house lives on how well it describes its lots. On biet2biet every vehicle is documented with detailed photos, damage marked on the vehicle silhouette, an equipment list, tyre tread depths and COC data. You calculate your margin before the first bid — and bid with the same confidence as after an inspection.
The bidding mechanics are deliberately simple: every bid is hidden — no dealer sees another bidder’s amount, company name or identity; all that is visible is the number of bidders and the time of the last bid. Your bid is also your price: it is a net amount, and there is no automatic proxy bidding from a stored maximum — if you win, you pay exactly the amount you bid. You can see your own standing at any time, and by default an e-mail tells you when you have been outbid — a notice you can switch off as you bid. A minimum bid increment of €100 can be switched on; it is currently switched off, so bid amounts are free. We can additionally switch off the number of bidders and the time of the last bid — you then see your own bids only.
Add to that the weekend pause, which stops the countdown from Saturday 08:00 until Monday 08:00 — exactly 48 hours. Because far from every business is staffed at the weekend, not a single one of the 48 hours is used up in that window; the end time simply shifts back by those 48 hours. A 48-hour auction that runs across the weekend therefore ends at the very time of day it was listed — just four days later instead of two. Bids remain perfectly possible in the meantime. Once the deadline passes the seller decides on the award; the invoice follows as soon as the vehicle has arrived at MKAA — after which 7 days apply for payment and 14 days for collection.
biet2biet is operated by MKAA from Luxembourg. You take over awarded vehicles at the MKAA sites in Roost and Bertrange, less than an hour from Trier, Metz, Arlon and Saarbrücken. Handover always comes with complete papers and a protocol; cross-border sourcing within the EU becomes a standard process.
Hands-on knowledge for dealers: auctions, appraisal, bidding strategy and imports — explained clearly.

Closed dealer auctions are the most direct route to fresh stock. How buying through a B2B platform works — and what really matters.

A good purchase starts with a sober appraisal. This checklist covers every point that determines the purchase price of a used car.

"Profit is made at purchase" is not a platitude in the car trade — it is business economics. How standing days, stock mix and sourcing channel interconnect.
An online auction house for vehicles, strictly B2B: professional dealers bid on documented vehicles in time-limited auctions — comparable to an auction platform like eBay, but with a verified circle of participants and clear auction rules. At present every auction vehicle comes from our own MKAA stock; the plan is for dealers to also auction their own stock to the dealer circle at a later stage.
Only professional car dealers with valid proof of trade. After registration we verify your details and activate your access — usually within one working day.
Registration, vehicle search and bidding are free and there is no buyer’s premium. The amount bid is the net purchase price; where VAT is chargeable it is added at the statutory rate. Whether VAT can be shown for a given vehicle is stated in its listing: under the margin scheme no VAT can be shown; an intra-Community supply to a business may be invoiced exempt from tax.
Standard runtime of 48 hours with a visible countdown. Every bid is hidden: you see the number of bidders and when the last bid was placed, but never the amount, company name or identity of the others. Your own standing — "you are the highest bidder" or "you have been outbid" — stays visible at all times; by default an e-mail also tells you when you are outbid, and you can switch that notice off as you bid. Your bid is a net amount with no automatic proxy bidding. A minimum bid increment of €100 can be switched on; it is currently switched off. At the weekend the auction clock pauses, so the remaining time stays put. The seller grants the award; an automatic award to the highest bid can be enabled per auction. We can additionally switch off the number of bidders and the time of the last bid — you then see your own bids only.
No. From Saturday 08:00 until Monday 08:00 the auction clock is paused — a span of exactly 48 hours. Not a single one of the 48 bidding hours is used up in that window, and the end time shifts back by exactly that span. In practice that means a 48-hour auction running across the weekend ends at the very time of day it was listed — just four days later instead of two, while an auction that never touches the pause ends after 48 hours by the wall clock as usual. You can still place bids perfectly normally over the weekend; only the countdown stands still. The reason: not every business is staffed at the weekend, and nobody should miss out on a vehicle for that reason alone.
Currently exclusively from MKAA direct purchasing in Luxembourg — every auction vehicle therefore comes from our own verified stock and is fully documented. The plan is to open the platform to registered dealers, who can then list their own stock in addition.
That is planned, but not yet enabled: at present we auction vehicles from our own MKAA stock exclusively. Register as a dealer now — we will let you know as soon as listing your own vehicles becomes possible. The intended process: create the listing with photos and a condition report, the dealer circle bids for 48 hours, and you decide freely on the award — with no obligation to sell.
You receive an award confirmation and arrange the handover: since every auction vehicle currently comes from MKAA stock, you collect it at our Roost or Bertrange sites. We issue the invoice as soon as the vehicle has arrived at MKAA — where a vehicle arrives later, the date is stated in its listing. From the invoice date you have 7 days to pay and 14 days to collect; the payment must have arrived by the time you pick the vehicle up at the latest. Vehicle documents and the handover protocol are ready when you arrive.
Request your dealer access now — free and without obligation. Once we have verified your business details you are usually bidding within one working day. Or log in directly if you already have your credentials.