Never undersell your car.

SpeediMango’s marketplace connects consumers who want to sell or trade-in their cars to a trusted network of dealers, assuring you have peace of mind and the best price.




When its time to sell your GMC truck or van, SpeediMango is your go-to source to get the best price without the hassle of selling it yourself.  Unlike the online and physical used-car cash buyers (wholesalers), who buy your car for a song and dance only then to sell it to another dealer, we don’t buy or sell cars.


Instead, SpeediMango is the fastest growing consumer-dealer marketplace, where our mission is to cut out the middleman and help you find you the best dealer buyers where you can sell or trade-in your Buick.  We help thousands of consumers every week get the best possible price for their cars with a stress-free experience.


If you’re in the market for another car, our network of trusted dealers can also offer you great deals enabling you to sell your car in one place and buy your car, cash in hand, from another place.  What could be be easier?


GMC is the truck division of General Motors (GM) and has long been known as a manufacturer of trucks, vans, SUVs and military vehicles.  GMCs are popular with small businesses, given their relaiablity and power.  In fact, GMC is one of the major American brands for tough, light and medium-duty trucks and vans.




Why should I sell or trade-in my car on SpeediMango?


Get the Best Price


Multiple offers from dealers who actually want it for inventory means you don’t have to accept the first ‘cash or ‘instant’ offer or accept thousands less than your car is worth.


Fast & Hassle-Free


No shopping your car to eight dealerships or entering details on five different websites to see how you can get the most. List it on SpeediMango.com. Watch the offers roll in. Negotiate online and finalize an offer before you set foot in a dealership.


Free to Use


SpeediMango does the work, gets you the best price and is totally free to use. What more could you ask for?


The Best Price for Your Next Car


Tell us what you want to buy next and dealerships from the SpeediMango network will make you an upfront offer online. So you can sell your car to one dealer and buy from another getting the best price every time.


Your Lease Could be Worth Money


Stop! Don’t just turn in your lease and pay all those fees. SpeediMango dealers want your car and will make you an offer. If the offer is greater than your lease buy-out, you pocket the difference.

The 4-Step SpeediMango Process To Sell or Trade-in Your Car

1 Describe your car here

2 Receive and negotiate dealer offers to buy your car

3 Accept a conditional dealer offer and visit dealer for an inspection of your vehicle

4 Trade-in or sell your car for cash




Ready to get the most for your car in the easiest possible way?


©2016 SpeediMango