Because of a 'grandfather clause', the strict emission standards only apply to new cars.
(..) If you want to offer up another lifeless husk - to the Empire... - Messala Severus? We've heard the stories about your grandfather. His hand in betraying Julius Caesar. And how he wailed when he was crucified. MESSALA: In spite of that, I'm thankful Pilate's on my side, brother. (..)2016 Ben-Hur
(..) You're my brother. You'll always be my brother. Everything I own is yours. No. I'll never have your name. And every time my name is spoken, it will be spoken alongside stories of my grandfather. Until I earn it back. Messala, wait. Wait! Messala. - Where are you going? - I'm going to Rome. (..)2016 Ben-Hur