Private marketplace for dealer groups

The right car.On the wrong lot.

Rooftop is a private marketplace for your dealer group. The unit aging at one store is a sale waiting at another. List it, let your sister stores bid, and keep it out of the auction lane.

Book a demo Watch the 90-second tour

20 minutes · your stores, your inventory

In a hurry? It's $249 a store.

The problem

Every day it sits, it costs you.

It was the right car when you took it in. It's just on the wrong lot. Your Chevy store doesn't get Camry shoppers. Your Toyota store, three hours away, gets them every day.

Day 60. It's aged.

The pill on the card turns amber at your group's aged mark, 60 days until you change it. Thirty days later it turns red. Everybody knows. Nobody has a good move.

Today, an aged unit has three exits.

A group text and a round of phone calls.
Another price cut.
The auction lane: a sell fee, a transport bill, a condition report, and about two weeks until you're paid.

The same week, your Toyota store buys a Camry at auction and pays a buy fee for it.

Northstar ChevroletTraverse City

In stock

94 days in stock

2024 Toyota Camry XSE

21,300 miSedanFWD

Advertised$29,900

Northstar Chevrolet

Holding cost so far$2,350At $25 a day, Rooftop's low estimate. Yours is probably higher.

Set up in minutes.

Add a store and point Rooftop at its website. Dealer.com, DealerOn and Dealer Inspire sites bring their own inventory in: photos, prices, days in stock and all. No website? Use a feed, a spreadsheet or the API.

List in seconds.

Open the unit that isn't moving. Rooftop suggests a starting bid from what an auction would actually pay you, and a Buy Now from what an auction would cost the buyer. Change either. Publish.

Offer to your group

Starting bid$23,900

Buy Now$24,700

How this was worked out

Advertised price: $29,900
Estimated wholesale value (86% less $1,000): $24,714
What an auction would pay you: $23,889
What a buyer pays at auction, all in: $25,539

Publish auction

Your auction is live. Other stores can bid now.

Live auction A grey 2024 Toyota Camry XSE with a black roof

Listed today

2024 Toyota Camry XSE

21,300 miSedanFWD

Starting bid$23,900

Northstar Chevrolet

Every store's inventory. One private marketplace.

Your whole group sees it the moment it's live. Nobody outside your group ever does.

90 seconds. Captions burned in. Sound optional.

Read the transcript

Every dealer group knows the feeling: the right car, sitting on the wrong lot.
Rooftop is a private marketplace for your group. Every store's inventory in one place, moving to where it sells.
Setup takes minutes. Add a store, point Rooftop at its website, and the inventory brings itself in, photos, prices and all.
Got a car that isn't moving? Open it, set a starting bid, add a Buy Now price if you like, and publish. Your whole group sees it.
Other stores bid in real time, and ask questions right on the listing. Outbid? You'll know right away.
When the deal is done, Rooftop handles the paperwork. Managers approve with a tap, and the bill of sale is signed right from a phone.
Both sides get the signed copy by email, and everyone can follow the car from pickup to delivery.
Rooftop. Your group's inventory, finally working together. See it at rooftopautomarketplace.com

Bid in real time.

Sister stores see the high bid, never who placed it. $100 increments by default. A bid in the last two minutes adds two more, so nobody gets sniped.

Ask right on the listing.

One conversation per vehicle. Both keys? Any paint work? The selling store answers once and every store sees it.

Or end it with Buy Now.

Set a price and any store can take the car on the spot. Either way, the buyer is a store in your group.

Live auction A grey 2024 Toyota Camry XSE with a black roof

Listed today

2024 Toyota Camry XSE

21,300 miSedanFWD

High bid$24,300

Northstar Chevrolet

Your store$24,000
Another store$24,300

Try it. Nothing is sent.

Another storeBoth keys? Any paint work?

Northstar ChevroletBoth keys, clean history report, no paint. Tires at 7/32.

Paperwork, handled.

The selling store confirms the car is still there. The winning bid stands as the buying store's approval, unless you want a GM or the group office to sign off above a threshold. One tap each.

Signed right from a phone.

Read it on any screen
A one-time code confirms it's you
Sealed with its signature record

A real bill of sale: both stores, the vehicle, the price, who approved and when, under your group's own terms. Every signed copy is sealed and can be verified later.

2024 Toyota Camry XSENorthstar Chevrolet → Northstar Toyota · $24,700Signed

Northstar ChevroletConfirms the car is on the lot
Approved
Northstar ToyotaApproves the purchase
Approved

The bill of sale open on a phone, ready to sign

Sign here

Signed, sealed, delivered.

Both stores get the signed copy by email. Pickup, in transit, delivered: everyone follows the same timeline, and the transport cost is recorded on the deal. You still move the car. Rooftop makes sure nobody has to ask where it is.

Delivery confirmed. Transfer complete.

The email both stores receive, with the signed bill of sale attached

Picked up
In transit
Delivered

Delivered

2024 Toyota Camry XSE

21,300 miSedanFWD

Transferred for$24,700

Northstar Toyota

The math

What the auction lane would have cost.

Same Camry, same week, the way it usually goes: your Chevy store sells it at auction, your Toyota store buys one back. Here is that round trip by Rooftop's estimates, set low on purpose.

Auction lane$20,000 to $29,999

Sell fee: $600
Transport to the auction: $200
Condition report: $25
Seller's side: $825
Buy fee: $500
Transport from the auction: $200
Post-sale inspection: $125
Buyer's side: $825
Auction-lane costs on one unit an estimate: $1,650

Not counted: about 14 days until an auction pays, at $25 a day to hold the car; reruns when it doesn't sell the first time; arbitration. Also not counted: what you pay to move the car between your own stores. You still pay that.

The auction's cut, and who keeps it instead

An auction pays the seller$23,889An auction costs the buyer$25,539

$1,650 the auction's cut

$24,700Sold inside the group

Northstar Chevrolet+$811against selling at auction

Northstar Toyota+$839against buying at auction

Any price between the two beats the auction for both stores. Rooftop suggests the starting bid and the Buy Now from these two numbers, and shows its working. From a $29,900 advertised price: wholesale estimated at 86% less $1,000 = $24,714.

And in a month, across your group?

Auction-lane costs avoided a month$4,950An estimate: fees, transport and inspections

Rooftop a month$9964 active stores at $249

Pays for itself at1transfers a month, across the group

Holding cost, left out$700Shown beside the estimate, never inside it

Example inputs: change them. An estimate, not a promise: it counts the buyer's side of every transfer and the seller's side only for units that were aged when listed, as the app's Reports page does. It is not net of what you pay to move a car between your own stores.Open the full calculator

Reports: wholesale auction costs avoided — **Rooftop keeps the count.**Reports adds this up for your own group as transfers complete, by the same estimates, beside what you recorded for moving the cars. The tile shown is from the demo workspace.

Security

Private by design. Built around your group.

Passkeys or an authenticator. No exceptions.

Anyone who can list, bid, approve or sign uses one. A password alone never moves a car.

Your group only.

Each group's data is kept apart at the database, row by row. Nobody outside your group sees a listing, a bid or a name.

Sealed, verifiable signatures.

A signed bill of sale is an unchangeable PDF with its signature record. Verify any copy later.

An audit trail for everything.

Listings, bids, approvals, signatures and every report download, with who and when.

No consumer data.

Vehicles and work accounts only. The terms say not to add retail customers' information.

Software. Not a middleman.

Not a dealer, broker, auctioneer or escrow holder. Rooftop never touches the money or the title.

AI is off until your group turns it on. If you do, only the search sentence or a spreadsheet's column headings are sent. Never inventory records or documents. How Rooftop is secured

Integrations

Works with the websites you already have.

Rooftop reads a store's public inventory pages: photos, prices and the day each unit entered stock. It follows robots.txt and never logs in anywhere. Integrations can read and prepare drafts. People publish, bid, approve and sign.

Dealer.com
DealerOn
Dealer Inspire
HTTPS feeds
CSV / XLSX
REST API + OpenAPI
MCP server

POST /api/v1/listings/drafts Trademarks belong to their owners. Rooftop isn't affiliated with them.

Pricing

$249 a store. That's the whole price list.

Per active store, per month, after a 14-day free trial. Unlimited managers. Unlimited listings and transfers. No buy fee. No sell fee.

A rooftop is an active store. Draft and archived stores are not charged.

6 stores$1,494a month

Book a demo See pricing

Questions

Straight answers.

What dealers ask first.

All questions

How does inventory get in?

Point Rooftop at a store's Dealer.com, DealerOn or Dealer Inspire website and it brings in the vehicles with their photos, prices and in-stock dates. You can also use an HTTPS feed, a CSV or Excel file, a pasted spreadsheet, or the API.

A manager decides what gets listed. Nothing is offered to the group automatically.

Is Rooftop a broker or an auction house?

No. Rooftop is software. It is not a dealer, broker, auctioneer, agent, carrier or escrow holder, and it is not a party to any transfer. The transfer is between your stores.

How do stores pay each other?

Outside Rooftop, however your group settles between its companies today. Rooftop never holds or moves money.

The transfer register, an Excel or CSV export with one line per sale between legal entities, is built for your accounting office.

What about titles, odometer statements and taxes?

Those stay with each store, as they do today. Rooftop produces the bill of sale and the record around it, and nothing else.

What happens if we cancel or delete the group?

Export first: the records workbook and every bill of sale are yours to keep, and dealers usually have to keep transfer records for years.

Deleting a group starts a 14-day read-only wait that any administrator can cancel. After that the group's records and files are permanently deleted, and backup copies expire within 35 days. Rooftop keeps the agreements you signed with it for 6 years.

Your move

Your group's inventory, finally working together.

Setup takes minutes. Your first aged unit can be in front of your sister stores today.

Book a demo