Here’s where it gets spicy. Petrol cars are usually compliant if they meet Euro 4 standards (roughly from 2006 onward). Diesel cars? They need to meet Euro 6 (typically from 2015). So, if you’re driving a diesel from 2010, you’re basically driving a smoke machine—fun at parties, bad for ULEZ.
Don’t shoot the messenger, okay? I didn’t make the rules. I just drive a tiny electric car that whispers “I’m better than you” every time I pass a diesel van.
