Only a very, very small selection of cars support this. As it stands now, the documentation is very much misleading as Smartcar makes it sound as if you can us

Only a very, very small selection of cars support this. As it stands now, the documentation is very much misleading as Smartcar makes it sound as if you can use this on any vehicle. Look again at sahaskatta's response, he/she made it sound as if you just have to read the docs to 'unlock your car with an app'. But in reality, you'll also need to have a brand new and very specific car if you want to do this. Sahaskatta also asked for 'any feedback I have'. I gave that and now I'm being downvoted for my criticism...