Hello.

Some time ago I saw a clip on YouTube. It was a scene from a C-drama about a fake marriage. A fake coulpe walk together and hug near a car to show to pretend that their affection is real. Chemistry was nice. They were both rather marture, probably wearing suits. 

I thought that it was a Lion's pride, but I was wrong. Can somebody help?

Try searching this site with the filter: tag "contractual marriage" and country to "china." Sort by rating probably and you can go through it. Since you mention car, I guess you can exclude historical/wuxia/xianxia ones. 

whoa... that a long strectch to pull. How about you put the YouTube link or maybe the actor/actress involved