In August 2016, Caltrain awarded a $551 million contract to produce the trainsets needed for running on the electrified line – 96 Stadler Kiss EMUs arranged into 16 trainsets will be delivered for testing by August 2019. Under the contract, Caltrain had the option to procure an additional 96 units in the future for an additional $385 million. In December 2018, Caltrain was reportedly carrying 65,000 passengers a day, and expected to have 240,000 daily riders in 2040. Therefore, after funding was received from the California State Transportation Agency's Transit and Intercity Rail Capital Program, Caltrain's board unanimously approved the purchase of additional cars from Stadler to increase the fleet from 16 six-car sets to 19 seven-car sets.