Concept prototype — a portfolio rebuild of design work for Engine Bay, not their shipped product and not affiliated with them. Every vehicle, VIN, dealer, and price below is invented sample data.

Done

You'll be notified when the lane closes

Proxy bidding will hold your position up to your maximum.

What this prototype was showing

Four dealer-to-dealer flows in one place: bid, appraise, trade, request
Time remaining as the organising principle, not recency
Condition and history above the bid control, not below it
Vehicle requests — asking for what you need, not searching what exists

Start over

End of the clickthrough. Nothing was bid, offered, or bought — this is a concept prototype with invented data.