Jaguar is already a property of Tata Motors but when it was sold to them, the most important component of the car remained to be Ford. Ford and Tata agreed that the first would be making the engines for the Jaguar until 2019. The sale did great for the brand and Tata is doing a good job for the Jaguar Land Rover, which has revived the popularity of the vehicle. Tata has sold more Jaguar this year up 63 percent from Q2 from previous.
This increase in demand urges Ford to make more motor of Jaguar. More details on this, on the link below.
Link: Ford Urged to Make More Motors for Jaguar (jaguar tata)