Are the KM100 and KM100(X) different tools?

No. Autel states KM100 = KM100X = KM100E. The (X) is a naming update, not new hardware.

Which is better for a locksmith doing GM work?

Product A. It includes two GM/Cadillac 5-button universal smart keys, so you can cut and program a GM key without buying blanks separately.

Is the $10 price gap worth switching for?

Product A is $415 at Channel Car Keys & Accessories and Product B is $425 at eBay, both as of November 5, 2026. A is cheaper and has more keys, so B only wins if you value its stated lifetime updates and NASTF notes.

Can either one do all-keys-lost jobs in North America?

Product B's listing says NASTF VSP credentials are required for all-keys-lost and anti-theft part replacement; key addition does not need them. Product A's listing does not address it, so assume the same rule applies to the same hardware.

How long does key programming take?

Both claim about 60 seconds to generate a universal smart key, and OBD key learning on over 90% of models.

Do updates cost extra?

Product B lists free lifetime online updates. Product A's listing does not state an update policy, so confirm with the seller before buying.

Autel KM100 & Universal Key Tool & Generator with MaxiVCI V200 Kit vs Autel MaxiIM KM100 (X) Key Programmer Scanner

These are the same tool: the KM100(X) is the current name for the KM100, and both bundles include the V200 VCI and two universal smart keys. The real difference is the bundle. Product A adds two GM/Cadillac 5-button smart keys on top of the two standard keys, for $415 at Channel Car Keys & Accessories as of November 5, 2026. Product B is $425 at eBay as of the same date, so A is $10 cheaper and ships with more keys. Buy B only if you want the single-source listing with the full spec sheet and Autel's own update and NASTF notes.

Today the Autel KM100 & Universal Key Tool & Generator with MaxiVCI V200 Kit costs $13.00 less at its best price.

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