Boeing [NYSE: BA] and Aviation Capital Group (ACG) today announced an order for 20 737 MAX 10 airplanes at the 2017 Paris Air Show. The order, valued at $2.49 billion at list prices, adds ACG to the growing launch group of the newest, largest member of the 737 MAX family.

"As a long-standing Boeing partner, we are pleased to be a launch customer for the new 737-10 variant," said Khanh T. Tran, CEO of ACG. "This order further underscores our commitment to ACG's growth strategy and provides us flexibility with this new variant of the proven, successful family of Boeing 737 aircraft."

ACG is already a part of the 737 MAX family with 60 current orders, including a mix of MAX 8s and MAX 9s. The addition of the 737 MAX 10 will provide ACG's customers with more capacity and the lowest costs per-seat of any single-aisle airplane.

"ACG is a proven fleet strategy solutions provider to airlines across the globe, and the 737 MAX 10 will bring even more benefits to their impressive portfolio," said Ihssane Mounir, senior vice president of Global Sales and Marketing, Boeing Commercial Airplanes. "We appreciate ACG growing their 737 MAX fleet by joining us in the launch of the new 737 MAX 10."

Like all of Boeing's 737 MAX models, the 737 MAX 10 incorporates the latest technology CFM International LEAP-1B engines, Advanced Technology winglets, the Boeing Sky Interior, large flight deck displays, and other improvements to deliver the highest efficiency, reliability and passenger comfort in the single-aisle market.

The 737 MAX is the fastest-selling airplane in Boeing history.