Hi, I have the Auto Enginuity system on my laptop too. You have to buy the EOBD/OBD system first then you have different makes that you pay for to add on. The Jaguar add on is great value at about £140 and gives you loads of info. I have the Chrysler and Porsche coverage also. Porsche was only £50 !! Gendan very helpful as well with support.