Top selling car diagnostic tool under US$100


JLR Mongoose Pro v145 US$ 48
V138 JLR Mongoose Pro for Jaguar and Land Rover Support till 2014 year vehicle, it is updated version of JLR MANGOOSE.
Operating System: Win XP, Win 7
Support L316, L319, L320, L322, L359, L538 Land Rover Vehicle Lines
Support X100, X150, X202, X250, X350, X351, X400 Jaguar Vehicle Lines
JLR mangoose V145 US$ 39.99
JLR Mangoose V138 support diagnostic & module programming for 2005 & Up Jaguar and 2005 & up Land Rover, its computer System Requires: Win XP only
MINI VCI   US$22.99

Maybe the following post from a user can be helpful if you are planning to have one MINI VCI.

I already own a really expensive Mongoose Data cable. My Father-In-Law liked it but didn’t want to pay the huge cost. He only wanted to read error codes, not reprogram anything.

I bought one of those cables for my father-in-law so he could read ODBII codes. It claimed TIS support, but for $35 I was sure this would be read only.
It arrived earlier this week. I just opened the box today. It came with TIS software and drivers. I installed it and it *works* exactly the same as my much more expensive mongoose. It has a full version of TIS, no license required. I reprogrammed a couple of options – works great.

This is $35 folks! Less than the cost of what some of you are paying to enter your TPMS codes for winter/summer tires at the dealership. Shipping took a couple of weeks.
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Opcom 2012V Opel diagnostic tool with PIC18F458 Chip Support Firmware Update $18.99
OPCOM 2012 diagnostic tool for Opel cars covers almost all Opel cars, even new cars with CAN-BUS based diagnostic, such as Vectra-C, Astra-H, Zafira-B.
opcom 2012 can read out and clear fault codes, shows you live data, lets you to perform output test. It supports many control units like Engine, Automatic Transmission, ABS, Airbag, Engine Cooling module, Instrument Cluster, Electronic Climate Control, Body Control Unit