Question: what are the different types of car keys?
Answer: Mechanical Keys. These keys used to be prevalent in most cars, but that's no longer the case. ... 
Programmable Remotes. Programmable remotes (or self-programmable as they're more often called) aren't really keys. ... 
Transponder Keys. ... 
Laser-Cut Transponder Keys. ... 
Remote/Key Combos. ... 
Proximity FOBs. ... 
Tibbe Keys.