How to know if your car can enter a low emission zone (LEZ)

There are more and more low-emission zones (LEZs) in Spain: large cities, medium-sized cities, tourist areas… and with them come the questions: “Can I enter with my car or will I get a €200 fine?” In this Gadgeting Car guide, I explain, step by step and without technical jargon, how to find out if your car qualifies.