In a UK first, questions about the car will appear after Ford adverts on ITV1 on Good Friday, Saturday and Easter Sunday.
Viewers can send in their answer by pressing the red button (if watching via digital), phoning or texting. The name of that day's winner will flash up within hours and all three will go through to the final on Bank Holiday Monday. At around 8.45pm, during the break of Monday's Coronation Street, the randomly selected overall winner will be named to take delivery of a Focus estate.
Ford will be the first to make use of graphic technology which enables the Focus ad to be overlaid with live competition results.
The competition will start each evening during Friday's Emmerdale, Ant and Dec's Saturday Night Takeaway and Heartbeat on Sunday.