Nov 10 (Reuters) - Tesla's best-selling Model

Y's program manager, Emmanuel Lamacchia, announced his departure

on Sunday after nearly eight years, marking another high-profile

exit from Elon Musk's electric vehicle company.

The departure came hours after the head of Tesla's

Cybertruck program, Siddhant Awasthi, also said he was leaving

the company. Awasthi, who started his career at Tesla as an

intern eight years ago, played a key role in bringing the

stainless-steel pickup to market and recently took over the

Model 3 program.

Lamacchia joined Tesla in 2018 and has spent over four years

overseeing the Model Y program, managing its production and

international rollout across multiple factories.

"What a journey it's been... from leading NPI (new product

introduction) for Model 3 and Model Y variants to becoming the

Vehicle Program Manager for Model Y, the best-selling car in the

world," Lamacchia wrote in LinkedIn post.

As Tesla pivots toward robotaxis and AI-driven projects, the

automaker has lost several senior program managers over the past

year, including Daniel Ho, credited with the Model 3 launch, and

David Zhang, who oversaw Model S and X programs.

The automaker posted record deliveries in the third quarter,

driven by a rush of U.S. buyers trying to grab a $7,500 tax

credit before it expired on September 30. However, analysts

expect a sharp slump in the fourth quarter as the incentive for

EV purchases vanishes.