Just like Carvana or CarMax, Vroom doesn't negotiate. Their haggle-free process for selling a car is great for those not keen on negotiating endlessly with used car salesmen. But, this means that you won't be able to negotiate any higher than what Vroom is offering. Once they appraise your car, its price is set, and you have 7 days or 250 miles (on the odometer) to take it or leave it. To ensure that you can get a better deal, appraise your car on other platforms, and see if they'll offer you more.