McDonald’s has secured its biggest acquisition in two decades, splashing out $A420 million on a deal which it claims will revolutionise the Drive Thru experience.

The acquisition has seen the fast food giant purchase Israeli company Dynamic Yield, which specialises in “decision-logic technology” and artificial intelligence in the retail sector.

McDonald’s said it would use the company’s technology to change its digital Drive Thru menu displays to offer personalised food suggestions for customers.

McDonald's Drive Thru could be about to change forever. (iStock)

The deal is the biggest the company has made in almost two decades. (Getty)

The technology has the potential to read a customer’s numberplates and suggest food items based on what they have ordered in the past.

Smart algorithms could also make recommendations based on weather, local trends or time of day.

“McDonald’s will utilise this decision technology to provide an even more personalised customer experience by varying outdoor digital Drive Thru menu displays to show food based on time of day, weather, current restaurant traffic and trending menu items,” the company said in a statement.

“The decision technology can also instantly suggest and display additional items to a customer’s order based on their current selections.”

McDonald's menu items you ordered previously could be assigned to your number plate. (Supplied)

The acquisition is the company’s largest purchase since it acquired the Boston Market franchise for $245m in 1999.

McDonald’s tested the tech at some of its US stores last year and said it would roll out the technology at further restaurants across America next year. It expects to expand to other top international markets, like Australia, soon after.

McDonald’s will also start integrating the technology into all its digital offerings, such as self-order kiosks and the company’s mobile app.

“With this acquisition, we’re expanding both our ability to increase the role technology and data will play in our future and the speed with which we’ll be able to implement our vision of creating more personalised experiences for our customers,” the company said.

Dynamic Yield’s other customers include IKEA and URBN.