the start button is a good as idea! fpv just have it wrong by making you put the key in ignition, its just pointless. in our audi I dont even take the keys out of my pocket, it unlocks/locks itself as soon as its in/out of range then just jump in, push in clutch pedal, push start button and your away (the keys never leave my pocket) sorry to get off topic, I dont know of any companies that do this, im sure there will be one somewhere