For any of Foxwell NT530, Autel AP200 and Vident iLink400, the price is cheaper, and is more for diagnostic function for any of GM Tech2, MDI, Vxdiag GM, they are more expensive and can perform online programming. They are all designed dedicatedly for GM not universal diagnostic tool for all makes, and the ranking combines their prices, features and customer reviews.
They are Foxwell NT530, Autel AP200, Vident iLink400, GM Tech2, MDI, Vxdiag GM. Put together the best diagnostic tool for GM including Chevrolet, Cadillac, Hummer, Buick, Pontiac, GMC, Holden.
